Fair Value - Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Fair Value
Assets
Short-term investments		$ 1,640
Total assets measured at fair value	$ 40,541	51,798
Liabilities
Interest sensitive contract liabilities	126,779	111,608
Debt	2,839	2,893
Securities Sold under Agreements to Repurchase	4,512	4,743
Funds withheld liability	349	360
Total liabilities not carried at fair value	134,479	119,604
Fair Value \| Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	124	79
Policy loans	336	347
Funds withheld at interest	30,934	37,727
Other investments	45	162
Fair Value \| Related Party
Assets
Investment funds	561	610
Funds withheld at interest	7,592	11,233
Short-term investments	949
Carrying Value
Assets
Short-term investments		1,640
Total assets measured at fair value	40,536	51,798
Liabilities
Interest sensitive contract liabilities	140,229	125,101
Debt	3,634	3,658
Securities Sold under Agreements to Repurchase	4,512	4,743
Funds withheld liability	349	360
Total liabilities not carried at fair value	148,724	133,862
Carrying Value \| Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	124	79
Policy loans	336	347
Funds withheld at interest	30,934	37,727
Other investments	40	162
Carrying Value \| Related Party
Assets
Investment funds	561	610
Funds withheld at interest	7,592	11,233
Short-term investments	949
Investment funds	16,818	14,128
Liabilities
Interest sensitive contract liabilities	189,065	173,616	$ 166,878
Debt	3,634	3,658
Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	124	79
Policy loans	336	347
Funds withheld at interest	25,953	32,880
Other investments	947	773
Short-term investments	527	2,160
Related Party
Assets
Investment funds	1,604	1,569
Funds withheld at interest	6,620	9,808
Other investments	327	303
Short-term investments	949	0
Liabilities
Interest sensitive contract liabilities	9,055	11,889
Variable Interest Entities
Assets
Investment funds	15,090	12,480
Other investments	94	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	38,571	49,148
Liabilities
Interest sensitive contract liabilities	126,779	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	126,779	111,608
Level 3 \| Fair Value \| Consolidated Entity, excluding Affiliated Entity
Assets
Investment funds	0	0
Policy loans	0	0
Funds withheld at interest	30,934	37,727
Other investments	45	162
Level 3 \| Fair Value \| Related Party
Assets
Investment funds	0	0
Funds withheld at interest	7,592	11,233
Short-term investments	0
NAV \| Fair Value
Assets
Total assets measured at fair value	685	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	124	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	561	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	1,285	1,961
Liabilities
Interest sensitive contract liabilities	0	0
Debt	2,839	2,893
Securities Sold under Agreements to Repurchase	4,512	4,743
Funds withheld liability	349	360
Total liabilities not carried at fair value	7,700	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	$ 949

Other investments including, but not limited to: partnership interests, credit funds, hedge funds, and private equity.

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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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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder.

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Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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