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Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Assets and liabilities measured at fair value on a recurring basis as of December 31, 2023 and 2022 are summarized below (dollars in millions):

December 31, 2023:												Fair Value Measurements Using:
						Total						Level 1						Level 2						Level 3
Assets: (1)
Fixed maturity securities – available-for-sale:
Corporate						$	38,755					$	—					$	33,822					$	4,933
Canadian government						3,917						—						3,917						—
Japanese government						3,131						—						3,131						—
ABS						4,429						—						3,064						1,365
CMBS						1,773						—						1,714						59
RMBS						1,079						—						1,078						1
U.S. government						2,520						2,426						87						7
State and political subdivisions						1,114						—						1,095						19
Other foreign government						3,749						—						3,714						35
Total fixed maturity securities – available-for-sale						60,467						2,426						51,622						6,419
Equity securities						139						69						—						70
Funds withheld at interest – embedded derivatives						(377)						—						—						(377)
Funds withheld at interest						54						—						—						54
Cash equivalents						1,335						1,322						13						—
Short-term investments						187						90						95						2
Other invested assets:
Derivatives						97						—						97						—
Other						22						—						22						—
Total other invested assets						119						—						119						—
Total						$	61,924					$	3,907					$	51,849					$	6,168
Liabilities:
Interest-sensitive contract liabilities – embedded derivatives						$	415					$	—					$	—					$	415
Funds withheld at interest – embedded derivatives						(206)						—						—						(206)
Derivatives – other liabilities						197						—						197						—
Total						$	406					$	—					$	197					$	209

(1)Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2023, the fair value of such investments was $856 million.

December 31, 2022:												Fair Value Measurements Using:
						Total						Level 1						Level 2						Level 3
Assets: (1)
Fixed maturity securities – available-for-sale:
Corporate						$	33,969					$	—					$	29,670					$	4,299
Canadian government						3,626						—						3,626						—
Japanese government						2,559						—						2,559						—
ABS						3,878						—						2,603						1,275
CMBS						1,623						—						1,555						68
RMBS						941						—						931						10
U.S. government						1,482						1,388						85						9
State and political subdivisions						1,119						—						1,093						26
Other foreign government						3,704						—						3,669						35
Total fixed maturity securities – available-for-sale						52,901						1,388						45,791						5,722
Equity securities						134						68						—						66
Funds withheld at interest – embedded derivatives						(371)						—						—						(371)
Funds withheld at interest						54						—						—						54
Cash equivalents						1,535						1,535						—						—
Short-term investments						121						54						54						13
Other invested assets:
Derivatives						170						—						170						—
Other						23						—						23						—
Total other invested assets						193						—						193						—
Total						$	54,567					$	3,045					$	46,038					$	5,484
Liabilities:
Interest-sensitive contract liabilities – embedded derivatives						$	530					$	—					$	—					$	530
Funds withheld at interest – embedded derivatives						(363)						—						—						(363)
Derivatives – other liabilities						183						—						183						—
Total						$	350					$	—					$	183					$	167

(1)Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2022, the fair value of such investments was $683 million.

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

The following table presents quantitative information about significant unobservable inputs used in Level 3 fair value measurements that are developed internally by the Company as of December 31, 2023 and 2022 (dollars in millions):

						Estimated Fair Value												Valuation						Unobservable						Range (Weighted Average)
						2023						2022						Technique						Input						2023						2022
Assets:
Corporate						$	91					$	25					Market comparable securities						Liquidity premium						0-2% (1%)						1%
																								EBITDA Multiple						6.0x-8.5x (7.1x)						5.3x
ABS						268						274						Market comparable securities						Liquidity premium						0-18% (2%)						0-18% (2%)
U.S. government						7						9						Market comparable securities						Liquidity premium						0-1% (1%)						0-1% (1%)
Equity securities						31						9						Market comparable securities						Liquidity premium						4%						—
																								EBITDA Multiple						8.4x-12.3x (10.1x)						8.4x-11.2x (9.6x)
Funds withheld at interest – embedded derivatives						(50)						(34)						Total return swap						Mortality						0-100% (3%)						0-100% (3%)
																								Lapse						0-35% (18%)						0-35% (17%)
																								Withdrawal						0-5% (4%)						0-5% (4%)
																								CVA						0-5% (0%)						0-5% (0%)
																								Crediting rate						1-4% (2%)						1-4% (2%)
Liabilities:
Interest-sensitive contract liabilities – embedded derivatives – indexed annuities						415						530						Discounted cash flow						Mortality						0-100% (3%)						0-100% (3%)
																								Lapse						0-35% (17%)						0-35% (16%)
																								Withdrawal						0-5% (4%)						0-5% (3%)
																								Option budget projection						1-4% (2%)						1-4% (2%)

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

For the year ended December 31, 2023:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	4,299					$	35					$	1,353					$	35					$	66					$	—					$	13					$	(8)					$	54					$	(530)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						3						—						6						—						—						—						—						—						(2)						—
Investment related gains (losses), net						(15)						—						(2)						—						(1)						—						(1)						(163)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						17
Included in other comprehensive income (loss)						34						—						90						(2)						—						—						—						—						3						—
Purchases (2)						1,021						—						253						—						9						1						14						—						2						17
Sales (2)						(94)						—						(24)						—						(4)						—						—						—						—						—
Settlements (2)						(380)						—						(260)						(2)						—						—						(1)						—						(3)						81
Transfers into Level 3						71						—						64						—						—						—						6						—						—						—
Transfers out of Level 3						(6)						—						(55)						(5)						—						(1)						(29)						—						—						—
Fair value, end of period						$	4,933					$	35					$	1,425					$	26					$	70					$	—					$	2					$	(171)					$	54					$	(415)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	3					$	—					$	6					$	—					$	—					$	—					$	—					$	—					$	(2)					$	—
Investment related gains (losses), net						(23)						—						(3)						—						(1)						—						(1)						(163)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						(62)
Included in other comprehensive income (loss)						35						—						86						(2)						—						—						—						—						3						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

For the year ended December 31, 2022:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	3,888					$	33					$	1,179					$	45					$	50					$	—					$	28					$	165					$	83					$	(693)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						6						—						—						—						—						—						—						—						(14)						—
Investment related gains (losses), net						(8)						—						(11)						(1)						6						—						1						(173)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						98
Included in other comprehensive income (loss)						(474)						(11)						(194)						(4)						—						—						(1)						—						(8)						—
Purchases (2)						1,669						—						521						—						14						—						33						—						3						1
Sales (2)						(182)						—						(58)						(6)						(4)						—						—						—						—						—
Settlements (2)						(577)						—						(140)						(5)						—						—						(28)						—						(10)						64
Transfers into Level 3						88						13						130						10						—						—						—						—						—						—
Transfers out of Level 3						(111)						—						(74)						(4)						—						—						(20)						—						—						—
Fair value, end of period						$	4,299					$	35					$	1,353					$	35					$	66					$	—					$	13					$	(8)					$	54					$	(530)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	4					$	—					$	—					$	—					$	—					$	—					$	—					$	—					$	(14)					$	—
Investment related gains (losses), net						(18)						—						(10)						—						4						—						—						(173)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						33
Included in other comprehensive income (loss)						(467)						(11)						(195)						(4)						—						—						—						—						(8)						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

For the year ended December 31, 2021:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	3,029					$	17					$	254					$	23					$	53					$	—					$	15					$	58					$	56					$	(752)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						5						—						1						—						—						—						—						—						(4)						—
Investment related gains (losses), net						(5)						—						—						—						13						—						—						107						—						—
Interest credited						—						—						—						—						—						—						—						—						—						10
Included in other comprehensive income (loss)						(28)						(4)						(6)						—						—						—						—						—						(1)						—
Purchases (2)						1,506						25						1,038						—						9						—						31						—						36						(34)
Sales (2)						(53)						—						(6)						—						(25)						—						(3)						—						—						—
Settlements (2)						(587)						(5)						(186)						(3)						—						—						(10)						—						(4)						83
Transfers into Level 3						29						—						84						25						—						—						—						—						—						—
Transfers out of Level 3						(8)						—						—						—						—						—						(5)						—						—						—
Fair value, end of period						$	3,888					$	33					$	1,179					$	45					$	50					$	—					$	28					$	165					$	83					$	(693)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	4					$	—					$	1					$	—					$	—					$	—					$	—					$	—					$	(4)					$	—
Investment related gains (losses), net						(7)						—						—						—						7						—						—						107						—						—
Interest credited						—						—						—						—						—						—						—						—						—						(72)
Included in other comprehensive income (loss)						(24)						(4)						(6)						—						—						—						—						—						(1)						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

For the year ended December 31, 2023:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	4,299					$	35					$	1,353					$	35					$	66					$	—					$	13					$	(8)					$	54					$	(530)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						3						—						6						—						—						—						—						—						(2)						—
Investment related gains (losses), net						(15)						—						(2)						—						(1)						—						(1)						(163)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						17
Included in other comprehensive income (loss)						34						—						90						(2)						—						—						—						—						3						—
Purchases (2)						1,021						—						253						—						9						1						14						—						2						17
Sales (2)						(94)						—						(24)						—						(4)						—						—						—						—						—
Settlements (2)						(380)						—						(260)						(2)						—						—						(1)						—						(3)						81
Transfers into Level 3						71						—						64						—						—						—						6						—						—						—
Transfers out of Level 3						(6)						—						(55)						(5)						—						(1)						(29)						—						—						—
Fair value, end of period						$	4,933					$	35					$	1,425					$	26					$	70					$	—					$	2					$	(171)					$	54					$	(415)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	3					$	—					$	6					$	—					$	—					$	—					$	—					$	—					$	(2)					$	—
Investment related gains (losses), net						(23)						—						(3)						—						(1)						—						(1)						(163)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						(62)
Included in other comprehensive income (loss)						35						—						86						(2)						—						—						—						—						3						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

For the year ended December 31, 2022:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	3,888					$	33					$	1,179					$	45					$	50					$	—					$	28					$	165					$	83					$	(693)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						6						—						—						—						—						—						—						—						(14)						—
Investment related gains (losses), net						(8)						—						(11)						(1)						6						—						1						(173)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						98
Included in other comprehensive income (loss)						(474)						(11)						(194)						(4)						—						—						(1)						—						(8)						—
Purchases (2)						1,669						—						521						—						14						—						33						—						3						1
Sales (2)						(182)						—						(58)						(6)						(4)						—						—						—						—						—
Settlements (2)						(577)						—						(140)						(5)						—						—						(28)						—						(10)						64
Transfers into Level 3						88						13						130						10						—						—						—						—						—						—
Transfers out of Level 3						(111)						—						(74)						(4)						—						—						(20)						—						—						—
Fair value, end of period						$	4,299					$	35					$	1,353					$	35					$	66					$	—					$	13					$	(8)					$	54					$	(530)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	4					$	—					$	—					$	—					$	—					$	—					$	—					$	—					$	(14)					$	—
Investment related gains (losses), net						(18)						—						(10)						—						4						—						—						(173)						—						—
Interest credited						—						—						—						—						—						—						—						—						—						33
Included in other comprehensive income (loss)						(467)						(11)						(195)						(4)						—						—						—						—						(8)						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

For the year ended December 31, 2021:						Fixed maturity securities – available-for-sale																																										Funds  withheld at interest –embedded derivatives, net (1)						Funds  withheld at interest						Interest-sensitive contract  liabilities – embedded derivatives
						Corporate						Foreign govt						Structured securities						U.S. and local govt						Equity securities						Cash equivalents						Short-term investments
Fair value, beginning of period						$	3,029					$	17					$	254					$	23					$	53					$	—					$	15					$	58					$	56					$	(752)
Total gains/losses (realized/unrealized)
Included in earnings, net:
Net investment income						5						—						1						—						—						—						—						—						(4)						—
Investment related gains (losses), net						(5)						—						—						—						13						—						—						107						—						—
Interest credited						—						—						—						—						—						—						—						—						—						10
Included in other comprehensive income (loss)						(28)						(4)						(6)						—						—						—						—						—						(1)						—
Purchases (2)						1,506						25						1,038						—						9						—						31						—						36						(34)
Sales (2)						(53)						—						(6)						—						(25)						—						(3)						—						—						—
Settlements (2)						(587)						(5)						(186)						(3)						—						—						(10)						—						(4)						83
Transfers into Level 3						29						—						84						25						—						—						—						—						—						—
Transfers out of Level 3						(8)						—						—						—						—						—						(5)						—						—						—
Fair value, end of period						$	3,888					$	33					$	1,179					$	45					$	50					$	—					$	28					$	165					$	83					$	(693)
Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period
Included in earnings, net:
Net investment income						$	4					$	—					$	1					$	—					$	—					$	—					$	—					$	—					$	(4)					$	—
Investment related gains (losses), net						(7)						—						—						—						7						—						—						107						—						—
Interest credited						—						—						—						—						—						—						—						—						—						(72)
Included in other comprehensive income (loss)						(24)						(4)						(6)						—						—						—						—						—						(1)						—

(1)Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

(2)The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

Fair Value Assets Measured On Nonrecurring Basis [Text Block]

Nonrecurring Fair Value Measurements

The Company has certain assets subject to measurement at fair value on a nonrecurring basis, in periods subsequent to their initial recognition if they are determined to be impaired. For the years ended December 31, 2023 and 2022, the Company did not have any material assets that were measured at fair value due to impairment.

Financial Instruments Carrying Amounts And Estimated Fair Value [Table Text Block]

The following table presents the carrying values and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis, as of December 31, 2023 and 2022 (dollars in millions). This table excludes any payables or receivables for collateral under repurchase/reverse repurchase agreements and other transactions. The estimated fair value of the excluded amount approximates carrying value as they equal the amount of cash collateral received/paid.

												Estimated						Fair Value Measurement Using:
December 31, 2023:						Carrying Value (1)						Fair Value						Level 1						Level 2						Level 3
Assets:
Mortgage loans						$	7,377					$	6,975					$	—					$	—					$	6,975
Policy loans						1,206						1,206						—						1,206						—
Funds withheld at interest						6,005						5,547						—						—						5,547
Limited partnerships – cost method						71						73						—						—						73
Cash and cash equivalents						1,635						1,635						1,635						—						—
Short-term investments						35						35						35						—						—
Other invested assets						1,019						841						4						63						774
Accrued investment income						759						759						—						759						—
Liabilities:
Interest-sensitive contract liabilities						$	21,797					$	21,665					$	—					$	—					$	21,665
Funds withheld at interest						4,689						4,400						—						—						4,400
Long-term debt						4,427						4,243						—						—						4,243
December 31, 2022:
Assets:
Mortgage loans						$	6,590					$	6,109					$	—					$	—					$	6,109
Policy loans						1,231						1,231						—						1,231						—
Funds withheld at interest						6,319						5,884						—						—						5,884
Limited partnerships – cost method						49						52						—						—						52
Cash and cash equivalents						1,392						1,392						1,392						—						—
Short-term investments						33						33						33						—						—
Other invested assets						947						758						4						65						689
Accrued investment income						630						630						—						630						—
Liabilities:
Interest-sensitive contract liabilities						$	23,493					$	23,065					$	—					$	—					$	23,065
Funds withheld at interest						1,848						1,572						—						—						1,572
Long-term debt						3,961						3,670						—						—						3,670

(1)Carrying values presented herein may differ from those in the Company’s consolidated balance sheets because certain items within the respective financial statement captions may be measured at fair value on a recurring basis.

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Carrying amounts and estimated fair value of financial instruments.

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Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

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