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•	general economic and political conditions in the countries in which we do business around the world;

•	changes in the competitive environment;

•	fluctuations in exchange and interest rates that could influence revenues and expenses;

•	changes in global equity and fixed income markets that could affect the return on invested assets;

•	changes in the funding status of our various defined benefit pension plans and the impact of any increased pension funding resulting from those changes;

•	the level of our debt limiting financial flexibility or increasing borrowing costs;

•	rating agency actions that could affect our ability to borrow funds;

•	volatility in our tax rate due to a variety of different factors including U.S. federal income tax reform;

•	the effect of the change in global headquarters and jurisdiction of incorporation, including differences in the anticipated benefits;

•	limits on our subsidiaries to make dividend and other payments to us;

•	the impact of lawsuits and other contingent liabilities and loss contingencies arising from errors and omissions and other claims against us;

•	the impact of, and potential challenges in complying with, legislation and regulation in the jurisdictions in which we operate, particularly given the global scope of our businesses and the possibility of conflicting regulatory requirements across jurisdictions in which we do business;

•	the impact of any investigations brought by regulatory authorities in the U.S., U.K. and other countries;

•	the impact of any inquiries relating to compliance with the U.S. Foreign Corrupt Practices Act and non-U.S. anti-corruption laws and with U.S. and non-U.S. trade sanctions regimes;

•	failure to protect intellectual property rights or allegations that we infringe on the intellectual property rights of others;

•	the effects of English law on our operating flexibility and the enforcement of judgments against us;

•	the failure to retain and attract qualified personnel;

•	international risks associated with our global operations;

•	the effect of natural or man-made disasters;

•	the potential of a system or network breach or disruption resulting in operational interruption or improper disclosure of personal data;

•	our ability to develop and implement new technology;

•	damage to our reputation among clients, markets or third parties;

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•	the actions taken by third parties that perform aspects of our business operations and client services;

•	the extent to which we manage certain risks created in connection with the various services, including fiduciary and investment consulting and other advisory services, among others, that we currently provide, or will provide in the future, to clients;

•	our ability to continue, and the costs and risks associated with, growing, developing and integrating companies that we acquire or new lines of business;

•	changes in commercial property and casualty markets, commercial premium rates or methods of compensation;

•	changes in the health care system or our relationships with insurance carriers;

•	our ability to implement initiatives intended to yield cost savings and the ability to achieve those cost savings;

•	our risks and uncertainties in connection with the sale, including arrangements under the transition service agreement and legacy IT systems associated with the Divested Business; and

•	our ability to realize the expected benefits from our restructuring plan.

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•

the growing availability of alternative methods for clients to meet their risk-protection needs, including a greater willingness on the part of corporations to “self-insure,” the use of so-called “captive” insurers, and the development of capital markets-based solutions and other alternative capital sources for traditional insurance and reinsurance needs that increase market capacity, increase competition and put pressure on pricing;

•	fluctuation in the need for insurance as the economic downturn continues, as clients either go out of business or scale back their operations, and thus reduce the amount of insurance, they procure;

•	the level of compensation, as a percentage of premium, that insurance carriers are willing to compensate brokers for placement activity;

•	the growing desire of clients to move away from variable commission rates and instead compensate brokers based upon flat fees, which can negatively impact us as fees are not generally indexed for inflation and do not automatically increase with premium as does commission-based compensation; and

•	competition from insurers seeking to sell their products directly to consumers, including online sales, without the involvement of an insurance broker.

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•	changes in our business compensation model as a result of regulatory actions or changes;

•	the establishment of programs in which state-sponsored entities provide property insurance in catastrophe-prone areas or other alternative types of coverage;

•	changes in regulations relating to health and welfare plans, defined contribution, and defined benefit plans, and investment consulting and asset management;

•	additional regulations promulgated by the FCA in the U.K., or other regulatory bodies in jurisdictions in which we operate; or

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•	additional requirements respecting data privacy, data security, and data usage in jurisdictions in which we operate that may increase our costs of compliance and potentially reduce the manner in which data can be used by us to develop or further our product offerings.

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•	the U.S. court having had jurisdiction over the original proceedings according to English conflicts of laws principles and rules of English private international law at the time when proceedings were initiated;

•	the U.S. proceedings not having been brought in breach of a jurisdiction or arbitration clause except with the agreement of the defendant or the defendant’s subsequent submission to the jurisdiction of the court;

•	the U.S. judgment being final and conclusive on the merits in the sense of being final and unalterable in the court which pronounced it and being for a definite sum of money;

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•	the recognition or enforcement, as the case may be, of the U.S. judgment not contravening English public policy in a sufficiently significant way or contravening the Human Rights Act 1998 (or any subordinate legislation made thereunder, to the extent applicable);

•	the U.S. judgment not being for a sum payable in respect of taxes, or other charges of a like nature, or in respect of a penalty or fine, or otherwise based on a U.S. law that an English court considers to be a penal or revenue law;

•	the U.S. judgment not having been arrived at by doubling, trebling or otherwise multiplying a sum assessed as compensation for the loss or damages sustained, and not otherwise being a judgment contrary to section 5 of the Protection of Trading Interests Act 1980 or is a judgment based on measures designated by the Secretary of State under Section 1 of that Act;

•	the U.S. judgment not having been obtained by fraud or in breach of English principles of natural justice;

•	the U.S. judgment not being a judgment on a matter previously determined by an English court, or another court whose judgment is entitled to recognition (or enforcement as the case may be) in England, in proceedings involving the same parties which conflicts with an earlier judgment of such court;

•	the party seeking enforcement (being a party who is not ordinarily resident in some part of the U.K. or resident in an EU Member State) providing security for costs, if ordered to do so by the English courts; and

•	the English enforcement proceedings being commenced within the relevant limitation period.

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•	difficulties in staffing and managing our foreign offices, including due to unexpected wage inflation or job turnover, and the increased travel, infrastructure, and legal and compliance costs and risks associated with multiple international locations;

•	hyperinflation in certain foreign countries;

•	conflicting regulations in the countries in which we do business;

•	imposition of investment requirements or other restrictions by foreign governments;

•	longer payment cycles;

•	greater difficulties in collecting accounts receivable;

•	insufficient demand for our services in foreign jurisdictions;

•	our ability to execute effective and efficient cross-border sourcing of services on behalf of our clients;

•	the reliance on or use of third parties to perform services on behalf of the Company;

•	disparate tax regimes;

•	restrictions on the import and export of technologies; and

•	trade barriers.

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(1)	In August 2018, Aon will move to 1 Liberty Plaza, New York, New York. The Company has signed a 10 year lease for 240,000 square feet to replace the 199 Water Street location.

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(1)	Does not include commissions or other costs paid to repurchase shares.

(2)

Aon has a share repurchase program authorized by the Company’s Board of Directors (the “Repurchase Program”). The Repurchase Program was established in April 2012 with up to $5.0 billion in authorized repurchases, and was increased by $5.0 billion in authorized repurchases in each of November 2014 and February 2017 for a total of $15.0 billion in repurchase authorizations. During the fourth quarter of 2017, we repurchased 3.5 million shares at an average price per share of $142.29 for a total cost of $500 million. Included in the 3.5 million shares repurchased was 118,000 shares, which are included in the above table, that did not settle until January 2018. These shares were settled at an average price per share of $134.41 and total cost of $15.9 million.

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(1)	Represents insurance premium receivables from clients as well as cash and investments held in a fiduciary capacity.

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•	Revenue increased 6%, or $589 million, to $10.0 billion in 2017 compared to 2016, reflecting 4% organic revenue growth and a 2% increase related to acquisitions, net of divestitures. Organic revenue growth for the year was driven by growth across every major revenue line, with particular strength in Reinsurance Solutions, Health Solutions, and Data & Analytic Services

•

Operating expenses increased $1.2 billion, or 16%, to $9.0 billion in 2017 compared to 2016 due primarily to $497 million of restructuring costs, a $380 million non-cash impairment charge to the indefinite lived tradenames associated with the sale of the Divested Business, a $258 million increase in expenses related to acquisitions, net of divestitures, $143 million of accelerated amortization related to tradenames, and an increase in expense associated with 4% organic revenue growth, partially offset by $165 million of savings related to restructuring and other operational improvement initiatives and a $92 million decrease in expenses related to certain pension settlements.

•	Operating margin decreased to 9.8% in 2017 from 17.4% in 2016. The decrease in operating margin from the prior year is primarily driven by an increase in operating expenses, described above, partially offset by organic revenue growth of 4% and core operational improvement.

•	Due to the factors set forth above, income from continuing operations was $435 million in 2017, a decrease of $818 million, or 65%, from 2016.

•

Cash flow provided by operating activities was $669 million in 2017, a decrease of $1.2 billion, or 63%, from $1.8 billion in 2016, due primarily to cash tax payments of approximately $940 million associated with the Divested Business, $280 million of cash payments for restructuring charges, and $45 million of transaction costs related to the Divested Business, partially offset by operational improvement.

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•	Organic revenue growth, a non-GAAP measure defined under the caption “Review of Consolidated Results — Organic Revenue Growth,” was 4% in 2017, comparable to 4% organic growth in the prior year. Organic revenue growth was driven by growth across every major revenue line, with particular strength in Reinsurance Solutions, Health Solutions, and Data & Analytic Services.

•

Adjusted operating margin, a non-GAAP measure defined under the caption “Review of Consolidated Results — Adjusted Operating Margin,” was 23.4% in 2017, compared to 21.6% in the prior year. The increase in adjusted operating margin primarily reflects organic revenue growth of 4%, core operational improvement, and $165 million of savings related to restructuring and other operational improvement initiatives.

•

Adjusted diluted earnings per share from continuing operations, a non-GAAP measure defined under the caption “Review of Consolidated Results — Adjusted Diluted Earnings per Share,” was $6.52 per share in 2017, an increase of $0.94 per share, or 17%, from $5.58 per share in 2016. The increase demonstrates solid operational performance and effective capital management, highlighted by a record $2.4 billion of share repurchase during 2017, partially offset by a higher effective tax rate and losses recognized in other expense.

•	Free cash flow, a non-GAAP measure defined under the caption “Review of Consolidated Results — Free Cash Flow,” was $486 million in 2017, a decrease of $1.2 billion, or 71%, from $1.7 billion in 2016. The decrease in free cash flow from the prior year was driven by a decrease in cash flow from operations of $1.2 billion and a 17%, or $27 million, increase in capital expenditures.

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(1)	Currency impact is determined by translating prior period's revenue at this period's foreign exchange rates.

(2)	Fiduciary investment income for the years ended December 31, 2017, 2016, and 2015 respectively, was $32 million, $22 million, and $21 million.

(3)	Organic revenue growth includes the impact of intercompany activity and excludes the impact of changes in foreign exchange rates, acquisitions, divestitures, transfers between business units, and fiduciary investment income.

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(1)

The effective tax rate used in the U.S. GAAP financial statements for continuing operations were 36.5%, 10.6%, and 12.3%, respectively, for the years ended December 31, 2017, 2016, and 2015. Tax expense was adjusted to exclude the estimated impact of the Tax Cuts and Jobs Act, including the impact of the transition tax imposed on our accumulated foreign earnings and the re-measurement of the carrying value of our U.S. net deferred tax assets due to the lower corporate tax rate. The provisional estimate of the impact of U.S. Tax Reform is based on Aon’s initial analysis of the Tax Cuts and Jobs Act and may be adjusted in future periods due to, among other things, additional analysis performed by Aon and additional guidance that may be issued by the U.S. Department of Treasury (see Note 10 in these notes to the consolidated financial statements for additional information). Further, adjusted items are generally taxed at the estimated annual effective

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(2)

Adjusted income from discontinued operations, net of tax, excludes gain on sale and intangible asset amortization on discontinued operations of $1,964 million and $11 million for the year ended December 31, 2017. Adjusted income from discontinued operations, net of tax, excludes intangible asset amortization on discontinued operations of $120 million and $141 million, respectively, for the years ended December 31, 2016 and 2015. The effective tax rates used in the U.S. GAAP financial statements for discontinued operations were 58.9%, 34.0%, and 35.2%, respectively, for the years ended December 31, 2017, 2016, and 2015. After adjusting to exclude the applicable tax impact associated with the gain on sale and intangible asset amortization, the adjusted effective tax rates for discontinued operations were 11.7%, 30.2%, and 31.1% for the years ended December 31, 2017, 2016, and 2015.

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(1)

Actual costs, when incurred, may vary due to changes in the assumptions built into this plan.  Significant assumptions that may change when plans are finalized and implemented include, but are not limited to, changes in severance calculations, changes in the assumptions underlying sublease loss calculations due to changing market conditions, and changes in the overall analysis that might cause the Company to add or cancel component initiatives.

(2)

Contract termination costs included within Technology rationalization for the year ended December 31, 2017 were $1 million. Contract termination costs included within Lease consolidations for the year ended December 31, 2017 were $8 million. Contact termination costs included within Other costs associated with restructuring and separation were $3 million. Total estimated contract termination costs to be incurred under the Restructuring Plan associated with Technology rationalizations, Lease consolidations, and Other costs associated with restructuring and separation, respectively, are $10 million, $80 million, and $10 million.

(3)	Other costs associated with the Restructuring Plan include those to separate the Divested Business, as well as moving costs and consulting and legal fees. These costs are generally recognized when incurred.

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•	positive net foreign currency translation adjustments of $385 million, which are attributable to the weakening of the U.S. dollar against certain foreign currencies;

•	a decrease of $19 million due to the amortization of net actuarial losses related to pension obligations; and

•	net financial instrument gains of $12 million.

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(1)	Increases to the projected benefit obligation reflect increases to our pension obligations, while decreases in the projected benefit obligation are recoveries toward fully-funded status. A change in the discount rate has an inverse relationship to the projected benefit obligation.

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•	Commissions, fees and other and Fiduciary investment income are now reported as one Total revenue line item; and

•	Other general expenses has been further broken out to provide greater clarity into charges related to Information technology, Premises, Depreciation of fixed assets, and Amortization and impairment of intangible assets.

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•	An increase to Deferred tax assets on the Consolidated Statement of Financial Position of $49 million through a cumulative-effect adjustment to Retained earnings for excess tax benefits not previously recognized, and

•	The recognition of $54 million, or $0.21 per share, income tax benefit from continuing operations related to excess tax benefits in the Consolidated Statement of Income for the year ended December 31, 2017.

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(1)	The years ended December 31, 2017 and 2016, include non-cash settlement expenses of $128 million and $220 million, respectively, related to certain pension plans. Refer to Note 12 “Employee Benefits” for further information.

(2)	Reclassification from operating income is recorded in Compensation and benefits.

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•

The Company currently recognizes revenue either at a point in time or over a period of time based on the transfer of value to customers or as the remuneration becomes determinable. Under the new standard, the revenue related to certain brokerage services recognized over a period of time will be recognized on the effective date of the associated policies when control of the policy transfers to the customer. As a result, revenue from these arrangements will be recognized in earlier periods under the new standard in comparison to the current guidance and will change the timing and amount of revenue recognized for annual and interim periods. This change is anticipated to result in a significant shift in timing of interim revenue for Reinsurance Solutions and to a lesser extent, certain other brokerage services.

•

The new standard provides guidance on accounting for certain revenue-related costs including when to capitalize costs associated with obtaining and fulfilling a contract. The majority of these costs are currently expensed as incurred under existing U.S. GAAP. Assets recognized for the costs to obtain a contract, which includes certain sales commissions, will be amortized on a systematic basis that is consistent with the transfer of the services to which the asset relates, considering anticipated renewals when applicable. For situations where the renewal period is one year or less and renewal costs are commensurate with the initial contract, the Company plans to apply a practical expedient and recognize the costs of obtaining a contract as an expense when incurred. Assets recognized as costs to fulfill a contract, which includes internal costs related to pre-placement broking activities, as well as other costs, will be amortized on a systematic basis that is consistent with the transfer of the services to which the asset relates, which is generally expected to be less than one year.

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(1)	Refer to Note 4 “Discontinued Operations” for additional information.

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(1)	Includes a provisional estimate of $42 million for the current portion of the Transition Tax. Refer to Note 10 “Income Taxes” for further information.

(1)	Includes a provisional estimate of $222 million for the Transition Tax. Refer to Note 10 “Income Taxes” for further information.

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(1)	All assets and liabilities associated with the Divested Business were sold on May 1, 2017.

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(1)

Actual costs, when incurred, may vary due to changes in the assumptions built into the Restructuring Plan.  Significant assumptions that may change when plans are finalized and implemented include, but are not limited to, changes in severance calculations, changes in the assumptions underlying sublease loss calculations due to changing market conditions, and changes in the overall analysis that might cause the Company to add or cancel component initiatives.

(2)

Contract termination costs included within Technology rationalization for the year ended December 31, 2017 were $1 million. Contract termination costs included within Lease consolidations for the year ended December 31, 2017 were $8 million. Contract termination costs included within Other costs associated with restructuring and separation were $3 million for the year ended December 31, 2017. Total estimated contract termination costs to be incurred under the Restructuring Plan associated with Technology rationalizations, Lease consolidations, and Other costs associated with restructuring and separation, respectively, are $10 million, $80 million, and $10 million.

(3)	Other costs associated with the Restructuring Plan include primarily those to separate the Divested Business, as well as moving costs and consulting and legal fees. These costs are generally recognized when incurred.

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(1)	Prior to May 1, 2017, finite lived tradenames were classified within Technology and other. As of December 31, 2016, $29 million of gross carrying amount and $7 million of accumulated amortization related to finite-lived tradenames were reclassified from Technology and other to Tradenames.

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The Company recorded a provisional estimate of $264 million income tax expense for the Transition Tax. The Company expects to pay additional U.S. federal cash taxes of approximately $264 million on the deemed mandatory repatriation, payable over eight years. The Transition Tax is based on estimates of post-1986 earnings and profits and related foreign tax credits of its U.S.-owned foreign subsidiaries as of November 2, 2017 and December 31, 2017, whichever amount is higher, and may change materially as the Company refines those estimates and as the Company further analyzes present and future regulations and other guidance interpreting the Transition Tax provision.  It could also change depending on certain events that could occur after December 31, 2017

•	The Company recorded a provisional estimate of $86 million income tax expense for the re-measurement of deferred tax assets and liabilities as a result of the reduction in the U.S. corporate income tax rate from 35% to 21%. The Company

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The Company has changed its assertion and is no longer permanently reinvested on the earnings subject to the Transition Tax. The Company has recorded a provisional estimate of local country income taxes, state income taxes, and withholding taxes in the amount of $39 million as of December 31, 2017. The tax estimate is provisional due to the fact that additional analysis of the Company’s complex legal entity structure is required as well as a more detailed analysis of the local country tax laws where the pools of undistributed earnings exist.

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(1)

The Company determines the adjustment for taxes on international operations based on the difference between the statutory tax rate applicable to earnings in each foreign jurisdiction and the enacted rate of 19.3%, 20.0% and 20.3% at December 31, 2017, 2016, and 2015, respectively. The benefit to the Company’s effective income tax rate from taxes on international operations relates to benefits from lower-taxed global operations, primarily due to the use of global funding structures. Restructuring charges and the impairment and amortization of tradenames, primarily in the U.S., were the significant drivers of the change from 2016 to 2017.

(2)	With the adoption of ASU 2016-09 in 2017, excess tax benefits and deficiencies from share-based payment transactions are recognized as income tax expense or benefit in the Company’s Consolidated Statements of Income. Refer to Note 2 “Summary of Significant Accounting Principles and Practices” for additional details.

(3)	Due to the Tax Reform Act, provisional estimates were accrued as of December 31, 2017 for the Transition Tax and the re-measurement of U.S. deferred tax assets and liabilities from 35% to 21%.

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(1)	Reclassifications from this category included in Accumulated other comprehensive loss are recorded in Other income (expense), Other general expenses, and Compensation and benefits. See Note 14 “Derivatives and Hedging” for additional information regarding the Company’s derivative and hedging activity.

(2)	Reclassifications from this category included in Accumulated other comprehensive loss are recorded in Compensation and benefits.

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(1)	Included in Prepaid pension

(2)	Included in Other current liabilities

(3)	Included in Pension, other postretirement, and postemployment liabilities

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(1)	U.S. pension plans are frozen and therefore not impacted by compensation increases or price inflation.

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(1)	Consists of cash and institutional short-term investment funds.

(2)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(3)	Consists of corporate and government bonds, asset-backed securities, and fixed-income derivatives.

(4)	Consists of exchange traded real estate investment trusts (“REITs”).

(5)	Consists of limited partnerships, private equity, and hedge funds.

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(1)	Consists of cash and institutional short-term investment funds.

(2)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(3)	Consists of corporate and government bonds, asset-backed securities, and fixed-income derivatives.

(4)	Consists of long-dated options on a commodity index.

(5)	Consists of exchange traded REITs.

(6)	Consists of limited partnerships, private equity, and hedge funds.

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(1)	Consists of cash and institutional short-term investment funds.

(2)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(3)	Consists of various equity, fixed income, commodity, and real estate mutual fund type investment vehicles.

(4)	Consists of equity securities and equity derivatives, including repurchase agreements.

(5)	Consists of corporate and government bonds.

(6)	Consists of property funds and trusts holding direct real estate investments.

(7)	Consists of limited partnerships, private equity, and hedge funds.

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(1)	Consists of cash and institutional short-term investment funds.

(2)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(3)	Consists of various equity, fixed income, commodity, and real estate mutual fund type investment vehicles.

(4)	Consists of equity securities and equity derivatives.

(5)	Consists of corporate and government bonds and fixed income derivatives.

(6)	Consists of property funds and trusts holding direct real estate investments.

(7)	Consists of limited partnerships, private equity, and hedge funds.

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(1)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(2)	Consists of corporate and government bonds and fixed-income derivatives.

(3)	Consists of limited partnerships, private equity, and hedge funds.

(4)	Consists of property funds and trusts holding direct real estate investments.

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(1)	Certain investments measured at fair value using the net asset value per share practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the above table are intended to permit reconciliation of the fair values to the amounts presented in the plan assets contained in this Note.

(2)	Consists of corporate and government bonds and fixed-income derivatives.

(3)	Consists of limited partnerships, private equity, and hedge funds.

(4)	Consists of property funds and trusts holding direct real estate investments.

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•	To contribute $4 million to fund significant other postretirement benefit plans during 2018.

•	Estimated future benefit payments will be approximately $4 million each year for 2018 through 2022, and $194 million in aggregate for 2023-2027.

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(1)	Represents per share weighted average fair value of award at date of grant.

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(1)	Included within Other current assets ($9 million in 2017 and $5 million in 2016) or Other non-current assets ($23 million in 2017 and $9 million in 2016).

(2)	Included within Other current liabilities ($3 million in 2017 and $6 million in 2016) or Other non-current liabilities ($3 million in 2017 and $7 million in 2016).

(3)	These contracts typically are for 30-day durations and executed close to the last day of the most recent reporting month, thereby resulting in nominal fair values at the balance sheet date.

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•	Level 1 — observable inputs such as quoted prices for identical assets in active markets;

•	Level 2 — inputs other than quoted prices for identical assets in active markets, that are observable either directly or indirectly; and

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•	Level 3 — unobservable inputs in which there is little or no market data which requires the use of valuation techniques and the development of assumptions.

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(1)	Included within Fiduciary assets, Short-term investments or Cash and cash equivalents in the Consolidated Statements of Financial Position, depending on their nature and initial maturity.

(2)	Refer to Note 14 “Derivatives and Hedging” for additional information regarding the Company’s derivatives and hedging activity.

(1)	Included within Fiduciary assets, Short-term investments or Cash and cash equivalents in the Consolidated Statements of Financial Position, depending on their nature and initial maturity.

(2)	Refer to Note 14 “Derivatives and Hedging” for additional information regarding the Company’s derivatives and hedging activity.

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(1)	Excludes commercial paper program.

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(1)	Includes $5 million of discontinued operations at December 31, 2016.

(2)	Includes $0 million of discontinued operations at December 31, 2017

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(1)	Includes $2 million of discontinued operations at December 31, 2015.

(2)	Includes $5 million of discontinued operations at December 31, 2016

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(1)	Includes $4 million of discontinued operations at December 31, 2014.

(2)	Includes $2 million of discontinued operations at December 31, 2015

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