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Business and Basis of Presentation (Policies)
6 Months Ended
Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation
Basis of Presentation
 
The unaudited interim condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). In management's opinion, all material adjustments necessary for a fair statement of the financial condition, results of operations and cash flows of the Company, including its consolidated variable interest entities (VIEs), are reflected in the periods presented and are of a normal, recurring nature. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. These unaudited interim condensed consolidated financial statements are as of June 30, 2020 and cover the three-month period ended June 30, 2020 (Second Quarter 2020), the three-month period ended June 30, 2019 (Second Quarter 2019), the six-month period ended June 30, 2020 (Six Months 2020) and the six-month period ended June 30, 2019 (Six Months 2019). Certain financial information that is normally included in annual financial statements prepared in accordance with GAAP, but is not required for interim reporting purposes, has been condensed or omitted. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. Certain prior year balances have been reclassified to conform to the current year's presentation.
Consolidation, Policy
The unaudited interim condensed consolidated financial statements include the accounts of AGL, its direct and indirect subsidiaries and its consolidated VIEs. Intercompany accounts and transactions between and among all consolidated entities have been eliminated.
Adopted Accounting Standards
Adopted Accounting Standards

Credit Losses on Financial Instruments

On January 1, 2020, the Company adopted Accounting Standards Update (ASU) 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.  The following summarizes the effect of adoption on the relevant balances.

Financial Assets Carried at Amortized Cost
This ASU provides a new current expected credit loss model (CECL) to account for credit losses on certain financial assets carried at amortized cost such as reinsurance recoverables, premiums receivable, asset management and performance fees receivables, as well as off-balance sheet exposures such as loan commitments. The new model requires an entity to estimate lifetime credit losses related to these assets, based on relevant historical information, adjusted for current conditions and reasonable and supportable forecasts that could affect the collectability of the reported amount. The Company determined that this ASU had no effect on these balances on the date of adoption or for Six Months 2020.

Financial Assets Carried at Fair Value, not Through Net Income
The most significant effect of the adoption of this ASU is in respect of the available-for-sale investment portfolio, for which targeted amendments were made to the impairment model. Under the new guidance, credit losses are recognized as an allowance for credit loss rather than a direct write-down of the amortized cost basis of the investment (e.g. other-than-temporary impairment, or OTTI, under the previous impairment model). The allowance for credit loss is limited to the excess of amortized cost over fair value, and may be reduced, with a corresponding reversal of credit loss expense, in the event that the expected cash flows of the instrument improves. The Company has elected to classify credit loss expense (including accretion and changes in the allowance for credit loss) as a component of realized gain (loss) on investments.
When amounts are deemed uncollectible, the Company writes-off such amounts. Write-offs are deducted from the allowance for credit loss and the amortized cost basis is written down. Amounts that have been written off may not be reversed through the allowance for credit loss, and any subsequent recovery of such amounts is only recognized in income when received.
The assessment of whether a credit loss exists is performed each quarter and includes numerous factors including the extent to which fair value is less than amortized cost, and any adverse conditions specifically related to the security, industry, and/or geographic area, including changes in the financial condition of the issuer, or underlying loan obligors, as well as general economic and political factors. Additional factors considered, as applicable, include remaining payment terms of the security, prepayment speeds, expected defaults and the value of any embedded credit enhancements. Unlike the previous OTTI model, management may not consider the length of time an instrument has been impaired or the effect of changes in foreign exchange rates in its assessment of credit loss. If, based on an assessment of these and other relevant factors, the Company determines that a credit loss may exist, it then performs a discounted cash flow analysis to determine its best estimate of such allowance for credit loss.
This ASU also eliminates the existing guidance for purchased credit impaired (PCI) securities (such as the Company's loss mitigation securities) and introduced a new model for purchased financial assets with credit deterioration (PCD) securities.
PCD securities are defined in the new guidance as financial assets that, as of the date of acquisition, have experienced a more-than-insignificant deterioration in credit quality since origination, as determined by an acquirer’s assessment. The ASU requires the recognition of an initial allowance for credit loss on the date of acquisition of PCD securities. Under the new guidance, the amortized cost of PCD securities on the date of acquisition is equal to the purchase price plus the allowance for credit loss, but no credit loss expense is recognized in the statement of operations on the date of acquisition. After the date of acquisition, PCD securities follow the guidance described above for the periodic assessment of credit losses in the available-for-sale investment portfolio.
For securities the Company intends to sell and securities for which it is more-likely-than-not that the Company will be required to sell the security before recovery of its amortized cost, the Company writes off any existing allowance for credit loss, and writes down the amortized cost basis of the instrument to fair value with an offset to realized gain (loss) in the statement of operations.
For all securities that were originally purchased with credit deterioration, whether or not an allowance was established on January 1, 2020, accrued interest is not separately presented, but rather is a component of the amortized cost of the instrument. For all other available-for-sale securities, a separate amount for accrued interest is reported in other assets. The Company has elected to not measure credit losses on its accrued interest receivable and instead write off accrued interest at the earliest to occur of (i) the date it is deemed uncollectible or (ii) when it is six months past due. All write offs of accrued interest are recorded as a reduction to interest income in the statement of operations.

The changes to the impairment model for available-for-sale securities were applied using a modified retrospective approach, and resulted in no effect to shareholders’ equity, in total or by component. On the date of adoption, there was no change to the carrying value of the available-for-sale investment portfolio, other than a gross-up of amortized cost and the recording of an offsetting allowance for credit losses for securities to which the Company applied the PCD accounting model. On January 1, 2020, the Company applied the PCD accounting model to PCI securities that were not in an unrealized gain position as of December 31, 2019. The fair value of these PCI securities was $248 million and their amortized cost was $266 million as of December 31, 2019. The Company determined the allowance for credit loss for such PCD securities was $62 million on January 1, 2020. The recording of the allowance for these PCD securities on January 1, 2020 had no effect on the condensed consolidated statement of operations or any component of shareholders’ equity. In Second Quarter 2020 and Six Months 2020, the Company recorded an additional $3 million and $14 million, respectively, in credit loss expense (including $1 million and $2 million, respectively, of accretion). Changes in the impairment model associated with PCD securities are to be applied prospectively. The Company did not purchase any PCD securities during Six Months 2020.

See Part II, Item 8, Financial Statements and Supplementary Data, Note 10, Investments and Cash, of the Company's 2019 Annual Report on Form 10-K for a complete discussion of the accounting policy for evaluating investments for OTTI prior to January 1, 2020.

Registered Debt Offerings that Include Credit Enhancements from an Affiliate

In March 2020, the SEC adopted amendments to the financial disclosure requirements related to certain debt securities, including registered debt securities issued by a wholly-owned, operating subsidiary that are fully and unconditionally guaranteed by the parent company. Prior to the amendments, a parent guarantor was required to provide condensed consolidating financial information for so long as the guaranteed securities were outstanding. The requirements amend financial disclosures to allow summarized financial information, which may be presented on a combined basis, reducing the number of periods presented and permitting the disclosures to be provided outside the notes to the financial statements. The Company elected to apply the amended requirements beginning in the first quarter of 2020, and is no longer providing condensed consolidating financial information that resulted from the registered debt obligations of its subsidiaries that were disclosed in Part II, Item 8, Financial Statements and Supplementary Data, Note 25, Subsidiary Information, of the Company's 2019 Annual Report on Form 10-K.

Future Application of Accounting Standards

Targeted Improvements to the Accounting for Long-Duration Contracts

In August 2018, the Financial Accounting Standards Board (FASB) issued ASU 2018-12, Financial Services - Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts.  The amendments in this ASU:

improve the timeliness of recognizing changes in the liability for future policy benefits and modify the rate used to discount future cash flows,
simplify and improve the accounting for certain market-based options or guarantees associated with deposit (or account balance) contracts,
simplify the amortization of deferred acquisition costs, and
improve the effectiveness of the required disclosures.

This ASU does not affect the Company’s financial guaranty insurance contracts, but may affect its accounting for certain specialty (non-financial guaranty) contracts. In October 2019, the FASB affirmed its decision to defer the effective date of the ASU to January 1, 2022. The Company does not plan to adopt this ASU until January 1, 2022, and does not expect this ASU to have a material effect on its consolidated financial statements.

Simplification of the Accounting for Income Taxes

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions and clarifying certain requirements regarding franchise taxes, goodwill, consolidated tax expenses and annual effective tax rate calculations. The ASU is effective for interim and annual periods beginning after December 15, 2020, with early adoption permitted. The Company is currently assessing the impact of this ASU on its consolidated financial statements.

Reference Rate Reform
    
In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) contract modifications caused by reference rate reform. The new guidance provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts that reference the London Interbank Offered Rate (LIBOR) or another reference rate that is expected to be discontinued due to reference rate reform. This guidance is effective immediately, and the Company may elect to apply the amendments prospectively through December 31, 2022. The Company is evaluating the effect that this ASU will have on its consolidated financial statements.
Fair Value of Financial Instruments
The Company carries a significant portion of its assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (i.e., exit price). The price represents the price available in the principal market for the asset or liability. If there is no principal market, then the price is based on a hypothetical market that maximizes the value received for an asset or minimizes the amount paid for a liability (i.e., the most advantageous market).
 
Fair value is based on quoted market prices, where available. If listed prices or quotes are not available, fair value is based on either internally developed models that primarily use, as inputs, market-based or independently sourced market parameters, including but not limited to yield curves, interest rates and debt prices or with the assistance of an independent third party using a discounted cash flow approach and the third party’s proprietary pricing models. In addition to market information, models also incorporate transaction details, such as maturity of the instrument and contractual features designed to reduce the Company’s credit exposure, such as collateral rights as applicable.

Valuation adjustments may be made to ensure that financial instruments are recorded at fair value. These adjustments include amounts to reflect counterparty credit quality, the Company’s creditworthiness and constraints on liquidity. As markets and products develop and the pricing for certain products becomes more or less transparent, the Company may refine its methodologies and assumptions. During Six Months 2020, no changes were made to the Company’s valuation models that had, or are expected to have, a material impact on the Company’s condensed consolidated balance sheets or statements of operations and comprehensive income.
 
The Company’s methods for calculating fair value produce a fair value that may not be indicative of net realizable value or reflective of future fair values. The use of different methodologies or assumptions to determine fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.
 
The categorization within the fair value hierarchy is determined based on whether the inputs to valuation techniques used to measure fair value are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect Company estimates of market assumptions. The fair value hierarchy prioritizes model inputs into three broad levels as follows, with Level 1 being the highest and Level 3 the lowest. An asset's or liability’s categorization is based on the lowest level of significant input to its valuation.

Level 1—Quoted prices for identical instruments in active markets. The Company generally defines an active market as a market in which trading occurs at significant volumes. Active markets generally are more liquid and have a lower bid-ask spread than an inactive market.
 
Level 2—Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and observable inputs other than quoted prices, such as interest rates or yield curves and other inputs derived from or corroborated by observable market inputs.
 
Level 3—Model derived valuations in which one or more significant inputs or significant value drivers are unobservable. Financial instruments are considered Level 3 when their values are determined using pricing models, discounted cash flow methodologies or similar techniques and at least one significant model assumption or input is unobservable. Level 3
financial instruments also include those for which the determination of fair value requires significant management judgment or estimation.