Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Statement of Cash Flows [Abstract]
Net cash provided by (used in) operating activities	$ 8,539	$ 10,743
Cash flows from investing activities
Sales, maturities and repayments of fixed maturity securities available-for-sale	45,512	66,380
Sales, maturities and repayments of equity securities	1,007	621
Sales, maturities and repayments of mortgage loans	6,571	8,983
Sales, maturities and repayments of real estate and real estate joint ventures	123	466
Sales, maturities and repayments of other limited partnership interests	698	1,306
Sales, maturities and repayments of short-term investments	10,680	11,322
Purchases of fixed maturity securities available-for-sale	(50,578)	(62,085)
Purchases of equity securities	(121)	(419)
Purchases of mortgage loans	(6,617)	(13,277)
Purchases of real estate and real estate joint ventures	(906)	(957)
Purchases of other limited partnership interests	(1,284)	(1,965)
Purchases of short-term investments	(12,491)	(9,490)
Cash received in connection with freestanding derivatives	1,960	3,175
Cash paid in connection with freestanding derivatives	(4,216)	(6,068)
Sales of businesses	0	590
Purchases of investments in operating joint ventures	0	(240)
Net change in policy loans	42	88
Net change in other invested assets	(1,077)	(824)
Other, net	(125)	(29)
Net cash provided by (used in) investing activities	(10,822)	(2,423)
Cash flows from financing activities
Policyholder account balances: Deposits	74,327	84,199
Policyholder account balances: Withdrawals	(70,834)	(79,679)
Net change in payables for collateral under securities loaned and other transactions	(2,927)	(6,602)
Long-term debt issued	2,003	1,013
Long-term debt repaid	(1,027)	(77)
Collateral financing arrangement repaid	(65)	(37)
Financing element on certain derivative instruments and other derivative related transactions, net	(170)	0
Proceeds from mortgage loan secured financing	340	0
Repayments of mortgage loan secured financing	(725)	0
Treasury stock acquired in connection with share repurchases	(2,244)	(2,730)
Dividends on preferred stock	(165)	(156)
Dividends on common stock	(1,180)	(1,205)
Other, net	(97)	(206)
Net cash provided by (used in) financing activities	(2,764)	(5,480)
Effect of change in foreign currency exchange rates on cash and cash equivalents balances	(236)	(756)
Change in cash and cash equivalents	(5,283)	2,084
Cash and cash equivalents, including subsidiaries held-for-sale, beginning of period	20,195	20,116
Cash and cash equivalents, including subsidiaries held-for-sale, end of period	14,912	22,200
Cash and cash equivalents, subsidiaries held-for-sale, beginning of period	0	69
Cash and cash equivalents, subsidiaries held-for-sale, end of period	0	0
Cash and cash equivalents, beginning of period	20,195	20,047
Cash and cash equivalents, end of period	14,912	22,200
Supplemental disclosures of cash flow information
Net cash paid for Interest	678	591
Net cash paid (received) for Income tax	1,352	612
Non-cash transactions:
Fixed maturity securities available-for-sale received in connection with pension risk transfer transactions	1,691	8,707
Real estate and real estate joint ventures acquired in satisfaction of debt	$ 11	$ 210