Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net income (loss)		$ 3,685	$ 3,143
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses		381	480
Market risk benefits gains (losses)		122	(16)
Amortization of premiums/discounts on fixed maturities		(38)	148
Amortization of purchased intangibles		142	142
Equity in net income of partially-owned entities	[1]	(460)	(291)
Deferred income taxes		43	108
Unpaid losses and loss expenses		561	1,949
Unearned premiums		1,913	1,554
Future policy benefits		351	99
Insurance and reinsurance balances payable		588	670
Accounts payable, accrued expenses, and other liabilities		(388)	67
Income taxes payable		(38)	(83)
Insurance and reinsurance balances receivable		(2,044)	(1,560)
Reinsurance recoverable		455	(642)
Deferred policy acquisition costs		(546)	(232)
Other		39	(370)
Net cash flows from operating activities		4,766	5,166
Cash flows from investing activities
Purchases of fixed maturities available for sale		(12,800)	(13,474)
Purchases of fixed maturities held to maturity		(208)	(380)
Purchases of equity securities		(240)	(664)
Sales of fixed maturities available for sale		7,229	8,053
Sales of equity securities		81	2,445
Maturities and redemptions of fixed maturities available for sale		3,203	5,753
Maturities and redemptions of fixed maturities held to maturity		708	820
Net change in short-term investments		898	(340)
Net derivative instruments settlements		(63)	117
Private equity contribution		(1,046)	(1,287)
Private equity distribution		568	448
Payments to Acquire Businesses, Net of Cash Acquired		(23)	0
Payment, including deposit, for Huatai Group Interest		(229)	(113)
Other		(340)	(253)
Net cash flows used for investing activities		(2,262)	1,125
Cash flows from financing activities
Dividends paid on Common Shares		(688)	(681)
Common Shares repurchased		(1,267)	(2,127)
Proceeds from issuance of repurchase agreements		3,774	3,002
Repayment of long-term debt		(475)	0
Repayment of repurchase agreements		(3,674)	(1,000)
Proceeds from share-based compensation plans		102	170
Policyholder contract deposits		170	188
Policyholder contract withdrawals		(101)	(144)
Payment, Tax Withholding, Share-based Payment Arrangement		(97)	(98)
Proceeds from (Payments for) Other Financing Activities		(56)	(35)
Net cash flows used for financing activities		(2,312)	(725)
Effect of foreign currency rate changes on cash and restricted cash		56	(138)
Net increase (decrease) in cash and restricted cash		248	5,428
Cash and restricted cash - beginning of period		2,127	1,811
Cash and restricted cash - end of period		2,375	7,239
Supplemental cash flow information
Taxes paid		753	612
Interest paid		$ 306	$ 290

[1] Equity in net income (loss) of partially-owned entities includes mark-to-market gains (losses) on private equities where we own more than three percent of $(3) million and $239 million for the three and six months ended June 30, 2023, respectively, and $(134) million and $121 million, respectively, for the prior year periods. This line item also includes net income of $22 million and $36 million attributable to our investments in Huatai for the three and six months ended June 30, 2023, respectively, compared to $15 million and $55 million, respectively, for the prior year periods.