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Fair Value - Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Fair Value
Assets
Short-term investments		$ 1,640
Total assets measured at fair value	$ 44,634	51,798
Liabilities
Interest sensitive contract liabilities	121,326	111,608
Debt	2,873	2,893
Securities Sold under Agreements to Repurchase	6,261	4,743
Funds withheld liability	305	360
Total liabilities not carried at fair value	130,765	119,604
Fair Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	123	79
Policy loans	336	347
Funds withheld at interest	32,200	37,727
Other investments	195	162
Fair Value | Related Party
Assets
Investment funds	575	610
Funds withheld at interest	10,314	11,233
Short-term investments	891
Carrying Value
Assets
Short-term investments		1,640
Total assets measured at fair value	44,633	51,798
Liabilities
Interest sensitive contract liabilities	134,154	125,101
Debt	3,642	3,658
Securities Sold under Agreements to Repurchase	6,261	4,743
Funds withheld liability	305	360
Total liabilities not carried at fair value	144,362	133,862
Carrying Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	123	79
Policy loans	336	347
Funds withheld at interest	32,200	37,727
Other investments	194	162
Carrying Value | Related Party
Assets
Investment funds	575	610
Funds withheld at interest	10,314	11,233
Short-term investments	891
Investment funds	15,868	14,128
Liabilities
Interest sensitive contract liabilities	184,359	173,616	$ 164,487
Debt	3,642	3,658
Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	123	79
Policy loans	336	347
Funds withheld at interest	27,844	32,880
Other investments	741	773
Short-term investments	650	2,160
Related Party
Assets
Investment funds	1,636	1,569
Funds withheld at interest	9,017	9,808
Other investments	343	303
Short-term investments	891	0
Liabilities
Interest sensitive contract liabilities	10,877	11,889
Variable Interest Entities
Assets
Investment funds	14,109	12,480
Other investments	100	101
Level 1 | Fair Value
Assets
Short-term investments		0
Total assets measured at fair value	0	0
Liabilities
Interest sensitive contract liabilities	0	0
Debt	0	0
Securities Sold under Agreements to Repurchase	0	0
Funds withheld liability	0	0
Total liabilities not carried at fair value	0	0
Level 1 | Fair Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	0	0
Policy loans	0	0
Funds withheld at interest	0	0
Other investments	0	0
Level 1 | Fair Value | Related Party
Assets
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0
Level 3 | Fair Value
Assets
Short-term investments		26
Total assets measured at fair value	42,709	49,148
Liabilities
Interest sensitive contract liabilities	121,326	111,608
Debt	0	0
Securities Sold under Agreements to Repurchase	0	0
Funds withheld liability	0	0
Total liabilities not carried at fair value	121,326	111,608
Level 3 | Fair Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	0	0
Policy loans	0	0
Funds withheld at interest	32,200	37,727
Other investments	195	162
Level 3 | Fair Value | Related Party
Assets
Investment funds	0	0
Funds withheld at interest	10,314	11,233
Short-term investments	0
NAV | Fair Value
Assets
Total assets measured at fair value	698	689
Liabilities
Interest sensitive contract liabilities	0	0
Debt	0	0
Securities Sold under Agreements to Repurchase	0	0
Funds withheld liability	0	0
Total liabilities not carried at fair value	0	0
NAV | Fair Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	123	79
Policy loans	0	0
Funds withheld at interest	0	0
Other investments	0	0
Short-term investments		0
NAV | Fair Value | Related Party
Assets
Investment funds	575	610
Funds withheld at interest	0	0
Short-term investments	0
Level 2 | Fair Value
Assets
Short-term investments		1,614
Total assets measured at fair value	1,227	1,961
Liabilities
Interest sensitive contract liabilities	0	0
Debt	2,873	2,893
Securities Sold under Agreements to Repurchase	6,261	4,743
Funds withheld liability	305	360
Total liabilities not carried at fair value	9,439	7,996
Level 2 | Fair Value | Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	0	0
Policy loans	336	347
Funds withheld at interest	0	0
Other investments	0	0
Level 2 | Fair Value | Related Party
Assets
Investment funds	0	0
Funds withheld at interest	0	$ 0
Short-term investments	$ 891

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