Fair Value - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets
Available-for-sale securities	$ 100,966	$ 110,561
Mortgage loans		24,148
Derivative assets	2,932	4,387
Restricted cash	753	796
Reinsurance recoverable (portion at fair value: 2022 – $1,580 and 2021 – $1,991)	4,437	4,594
Liabilities
Interest sensitive contract liabilities	164,571	156,325
Future policy benefits	52,478	42,488
Derivative liabilities	1,223	472
Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	92,011	100,159
Trading securities, at fair value	1,735	2,056
Mortgage loans	25,218	20,748
Investment funds	25	183
Funds withheld at interest	(37,638)	(43,907)
Derivative assets	2,932	4,387
Short-term investments	264	139
Other investments	855	1,473
Related Party
Assets
Available-for-sale securities	8,955	10,402
Trading securities, at fair value	898	1,781
Equity securities, at fair value	163	284
Mortgage loans	1,416	1,360
Investment funds	818	2,958
Funds withheld at interest	(10,675)	(12,207)
Other investments	272	222
Liabilities
Interest sensitive contract liabilities	12,653	12,948
Future policy benefits	2,078	1,853
Variable Interest Entities
Assets
Trading securities, at fair value	386	0
Mortgage loans	1,992	2,040
Other investments	111	0
U.S. government and agencies \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2,794	223
U.S. state, municipal and political subdivisions \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	1,000	1,213
Foreign governments \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	896	1,128
Corporate \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	56,218	66,226
Corporate \| Related Party
Assets
Available-for-sale securities	1,007	859
CLO \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	13,485	13,652
CLO \| Related Party
Assets
Available-for-sale securities	2,679	2,549
ABS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	9,547	8,989
ABS \| Related Party
Assets
Available-for-sale securities	5,269	6,994
CMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2,904	2,758
RMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	5,167	5,970
Level 3
Assets
Available-for-sale securities	10,186	10,167
Mortgage loans	28,259
Recurring
Assets
Investment funds		268
Recurring \| Level 1
Assets
Cash and cash equivalents	11,172	9,479
Restricted cash	753	796
Reinsurance recoverable (portion at fair value: 2022 – $1,580 and 2021 – $1,991)	0	0
Total assets measured at fair value	15,138	10,848
Liabilities
Derivative liabilities	(9)	0
Total liabilities measured at fair value	(9)	0
Recurring \| Level 1 \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2,792	214
Trading securities, at fair value	25	3
Equity securities, at fair value	105	86
Mortgage loans	0	0
Investment funds	0	0
Derivative assets	20	67
Short-term investments	68	49
Other investments	0	0
Recurring \| Level 1 \| Related Party
Assets
Available-for-sale securities	0	0
Trading securities, at fair value	0	0
Equity securities, at fair value	0	0
Mortgage loans	0
Investment funds	0	0
Recurring \| Level 1 \| Variable Interest Entities
Assets
Trading securities, at fair value	0
Mortgage loans	0
Investment funds	5	0
Other investments	0
Cash and cash equivalents	198	154
Recurring \| Level 1 \| Universal life
Liabilities
Interest sensitive contract liabilities	0	0
Recurring \| Level 1 \| AmerUs Closed Block
Liabilities
Future policy benefits	0	0
Recurring \| Level 1 \| ILICO Closed Block and life benefits
Liabilities
Future policy benefits	0	0
Recurring \| Level 1 \| Embedded derivatives
Liabilities
Interest sensitive contract liabilities	0	0
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		0
Recurring \| Level 1 \| Embedded derivatives \| Consolidated Entity, excluding Affiliated Entity
Assets
Funds withheld at interest	0	0
Recurring \| Level 1 \| Embedded derivatives \| Related Party
Assets
Funds withheld at interest	0	0
Recurring \| Level 1 \| U.S. government and agencies \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2,792	214
Recurring \| Level 1 \| U.S. state, municipal and political subdivisions \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| Foreign governments \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| Corporate \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| Corporate \| Related Party
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| CLO \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| CLO \| Related Party
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| ABS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| ABS \| Related Party
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| CMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 1 \| RMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 2
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Reinsurance recoverable (portion at fair value: 2022 – $1,580 and 2021 – $1,991)	0	0
Total assets measured at fair value	92,827	105,173
Liabilities
Derivative liabilities	1,231	469
Total liabilities measured at fair value	1,231	514
Recurring \| Level 2 \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	83,967	94,928
Trading securities, at fair value	1,652	1,984
Equity securities, at fair value	941	655
Mortgage loans	0	0
Investment funds	0	0
Derivative assets	2,912	4,320
Short-term investments	112	61
Other investments	142	130
Recurring \| Level 2 \| Related Party
Assets
Available-for-sale securities	2,755	3,085
Trading securities, at fair value	7	10
Equity securities, at fair value	0	0
Mortgage loans	0
Investment funds	0	0
Recurring \| Level 2 \| Variable Interest Entities
Assets
Trading securities, at fair value	56
Mortgage loans	0
Investment funds	283	0
Other investments	0
Cash and cash equivalents	0	0
Recurring \| Level 2 \| Universal life
Liabilities
Interest sensitive contract liabilities	0	0
Recurring \| Level 2 \| AmerUs Closed Block
Liabilities
Future policy benefits	0	0
Recurring \| Level 2 \| ILICO Closed Block and life benefits
Liabilities
Future policy benefits	0	0
Recurring \| Level 2 \| Embedded derivatives
Liabilities
Interest sensitive contract liabilities	0	0
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		45
Recurring \| Level 2 \| Embedded derivatives \| Consolidated Entity, excluding Affiliated Entity
Assets
Funds withheld at interest	0	0
Recurring \| Level 2 \| Embedded derivatives \| Related Party
Assets
Funds withheld at interest	0	0
Recurring \| Level 2 \| U.S. government and agencies \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2	9
Recurring \| Level 2 \| U.S. state, municipal and political subdivisions \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	1,000	1,213
Recurring \| Level 2 \| Foreign governments \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	894	1,126
Recurring \| Level 2 \| Corporate \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	54,630	64,887
Recurring \| Level 2 \| Corporate \| Related Party
Assets
Available-for-sale securities	158	189
Recurring \| Level 2 \| CLO \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	13,485	13,638
Recurring \| Level 2 \| CLO \| Related Party
Assets
Available-for-sale securities	2,354	2,347
Recurring \| Level 2 \| ABS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	5,953	5,370
Recurring \| Level 2 \| ABS \| Related Party
Assets
Available-for-sale securities	243	549
Recurring \| Level 2 \| CMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2,904	2,715
Recurring \| Level 2 \| RMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	5,099	5,970
Recurring \| Level 3
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Reinsurance recoverable (portion at fair value: 2022 – $1,580 and 2021 – $1,991)	1,580	1,991
Total assets measured at fair value	39,688	22,454
Liabilities
Derivative liabilities	1	3
Total liabilities measured at fair value	8,265	18,407
Recurring \| Level 3 \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	5,252	5,017
Trading securities, at fair value	58	69
Equity securities, at fair value	62	429
Mortgage loans	25,218	17
Investment funds	19	18
Derivative assets	0	0
Short-term investments	58	29
Other investments	0	0
Recurring \| Level 3 \| Related Party
Assets
Available-for-sale securities	6,200	7,317
Trading securities, at fair value	891	1,771
Equity securities, at fair value	163	284
Mortgage loans	1,416
Investment funds	818	2,855
Recurring \| Level 3 \| Variable Interest Entities
Assets
Trading securities, at fair value	330
Mortgage loans	1,626
Investment funds	1,053	1,297
Other investments	31
Cash and cash equivalents	0	0
Recurring \| Level 3 \| Universal life
Liabilities
Interest sensitive contract liabilities	943	1,235
Recurring \| Level 3 \| AmerUs Closed Block
Liabilities
Future policy benefits	1,247	1,520
Recurring \| Level 3 \| ILICO Closed Block and life benefits
Liabilities
Future policy benefits	623	742
Recurring \| Level 3 \| Embedded derivatives
Liabilities
Interest sensitive contract liabilities	5,451	14,907
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		0
Recurring \| Level 3 \| Embedded derivatives \| Consolidated Entity, excluding Affiliated Entity
Assets
Funds withheld at interest	3,958	(782)
Recurring \| Level 3 \| Embedded derivatives \| Related Party
Assets
Funds withheld at interest	(1,129)	(578)
Recurring \| Level 3 \| U.S. government and agencies \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 3 \| U.S. state, municipal and political subdivisions \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	0
Recurring \| Level 3 \| Foreign governments \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	2	2
Recurring \| Level 3 \| Corporate \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	1,588	1,339
Recurring \| Level 3 \| Corporate \| Related Party
Assets
Available-for-sale securities	849	670
Recurring \| Level 3 \| CLO \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	14
Recurring \| Level 3 \| CLO \| Related Party
Assets
Available-for-sale securities	325	202
Recurring \| Level 3 \| ABS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	3,594	3,619
Recurring \| Level 3 \| ABS \| Related Party
Assets
Available-for-sale securities	5,026	6,445
Recurring \| Level 3 \| CMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	0	43
Recurring \| Level 3 \| RMBS \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	68	0
Recurring \| NAV
Assets
Total assets measured at fair value	8,159
Recurring \| NAV \| Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	6	165
Recurring \| NAV \| Related Party
Assets
Investment funds	0	103
Recurring \| NAV \| Variable Interest Entities
Assets
Investment funds	8,153	0
Fair Value
Assets
Total assets measured at fair value	56,043	86,719
Liabilities
Interest sensitive contract liabilities	105,039	108,621
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		394
Fair Value \| Consolidated Entity, excluding Affiliated Entity
Assets
Mortgage loans		21,138
Investment funds	108	995
Funds withheld at interest	(41,596)	(43,125)
Short-term investments	26
Other investments	713	1,343
Fair Value \| Related Party
Assets
Mortgage loans		1,369
Investment funds	720	4,433
Funds withheld at interest	(11,804)	(11,629)
Other investments	272	223
Fair Value \| Variable Interest Entities
Assets
Mortgage loans	366	2,152
Other investments	80
Fair Value \| Level 1
Assets
Total assets measured at fair value	0	0
Liabilities
Interest sensitive contract liabilities	0	0
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		0
Fair Value \| Level 1 \| Consolidated Entity, excluding Affiliated Entity
Assets
Mortgage loans		0
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0
Other investments	0	0
Fair Value \| Level 1 \| Related Party
Assets
Mortgage loans		0
Investment funds	0	0
Funds withheld at interest	0	0
Other investments	0	0
Fair Value \| Level 1 \| Variable Interest Entities
Assets
Mortgage loans	0	0
Other investments	0
Fair Value \| Level 2
Assets
Total assets measured at fair value	358	312
Liabilities
Interest sensitive contract liabilities	0	0
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		394
Fair Value \| Level 2 \| Consolidated Entity, excluding Affiliated Entity
Assets
Mortgage loans		0
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0
Other investments	0	0
Fair Value \| Level 2 \| Related Party
Assets
Mortgage loans		0
Investment funds	0	0
Funds withheld at interest	0	0
Other investments	0	0
Fair Value \| Level 2 \| Variable Interest Entities
Assets
Mortgage loans	0	0
Other investments	0
Fair Value \| Level 3
Assets
Total assets measured at fair value	54,857	80,979
Liabilities
Interest sensitive contract liabilities	105,039	108,621
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		0
Fair Value \| Level 3 \| Consolidated Entity, excluding Affiliated Entity
Assets
Mortgage loans		21,138
Investment funds	0	0
Funds withheld at interest	(41,596)	(43,125)
Short-term investments	26
Other investments	713	1,343
Fair Value \| Level 3 \| Related Party
Assets
Mortgage loans		1,369
Investment funds	0	0
Funds withheld at interest	(11,804)	(11,629)
Other investments	272	223
Fair Value \| Level 3 \| Variable Interest Entities
Assets
Mortgage loans	366	2,152
Other investments	80
Fair Value \| NAV
Assets
Total assets measured at fair value	828	5,428
Fair Value \| NAV \| Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	108	995
Fair Value \| NAV \| Related Party
Assets
Investment funds	720	4,433
Fair Value \| Recurring
Assets
Cash and cash equivalents	11,172	9,479
Restricted cash	753	796
Reinsurance recoverable (portion at fair value: 2022 – $1,580 and 2021 – $1,991)	1,580	1,991
Total assets measured at fair value	155,812	138,743
Liabilities
Interest sensitive contract liabilities	6,394	16,142
Future policy benefits	1,870	2,262
Derivative liabilities	1,223	472
Total liabilities measured at fair value	9,487	18,921
Fair Value \| Recurring \| Consolidated Entity, excluding Affiliated Entity
Assets
Available-for-sale securities	92,011	100,159
Trading securities, at fair value	1,735	2,056
Equity securities, at fair value	1,108	1,170
Mortgage loans	25,218	17
Investment funds	25	183
Funds withheld at interest	3,958	(782)
Derivative assets	2,932	4,387
Short-term investments	238	139
Other investments	142	130
Fair Value \| Recurring \| Related Party
Assets
Available-for-sale securities	8,955	10,402
Trading securities, at fair value	898	1,781
Equity securities, at fair value	163	284
Mortgage loans	1,416	0
Investment funds	818	2,958
Funds withheld at interest	(1,129)	(578)
Fair Value \| Recurring \| Variable Interest Entities
Assets
Trading securities, at fair value	386
Mortgage loans	1,626	0
Investment funds	9,494	1,297
Other investments	31	0
Cash and cash equivalents	198	154
Fair Value \| Recurring \| Universal life
Liabilities
Interest sensitive contract liabilities	943	1,235
Fair Value \| Recurring \| AmerUs Closed Block
Liabilities
Future policy benefits	1,247	1,520
Fair Value \| Recurring \| ILICO Closed Block and life benefits
Liabilities
Future policy benefits	623	742
Fair Value \| Recurring \| Embedded derivatives
Liabilities
Interest sensitive contract liabilities	5,451	14,907
Funds withheld liability (portion at fair value: 2022 – $0 and 2021 – $45)		45
Fair Value \| Recurring \| Embedded derivatives \| Consolidated Entity, excluding Affiliated Entity
Assets
Funds withheld at interest	3,958	(782)
Fair Value \| Recurring \| Embedded derivatives \| Related Party
Assets

Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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