Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income (loss)		$ 1,892	$ 1,953
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses		77	(23)
Market risk benefits gains (losses)		115	(49)
Amortization of premiums/discounts on fixed maturities		(14)	91
Amortization of purchased intangibles		72	71
Equity in net income of partially-owned entities	[1]	(340)	(363)
Deferred income taxes		9	91
Unpaid losses and loss expenses		(14)	923
Unearned premiums		591	492
Future policy benefits		136	21
Insurance and reinsurance balances payable		(9)	147
Accounts payable, accrued expenses, and other liabilities		(390)	(274)
Income taxes payable		128	128
Insurance and reinsurance balances receivable		(402)	(125)
Reinsurance recoverable		622	(444)
Deferred policy acquisition costs		(254)	(116)
Other		32	(79)
Net cash flows from operating activities		2,251	2,444
Cash flows from investing activities
Purchases of fixed maturities available for sale		(7,169)	(5,933)
Purchases of fixed maturities held to maturity		(88)	(143)
Purchases of equity securities		(135)	(380)
Sales of fixed maturities available for sale		3,854	1,838
Sales of equity securities		43	1,110
Maturities and redemptions of fixed maturities available for sale		1,541	3,003
Maturities and redemptions of fixed maturities held to maturity		472	398
Net change in short-term investments		1,256	(267)
Net derivative instruments settlements		(38)	74
Private equity contribution		(384)	(669)
Private equity distribution		273	207
Payments to Acquire Businesses, Net of Cash Acquired		(23)	0
Payment, including deposit, for Huatai Group Interest		0	(113)
Other		(172)	(120)
Net cash flows used for investing activities		(570)	(995)
Cash flows from financing activities
Dividends paid on Common Shares		(345)	(341)
Common Shares repurchased		(545)	(1,001)
Proceeds from issuance of repurchase agreements		1,308	146
Repayment of long-term debt		(475)	0
Repayment of repurchase agreements		(1,307)	(146)
Proceeds from share-based compensation plans		55	114
Policyholder contract deposits		95	106
Policyholder contract withdrawals		(101)	(88)
Payment, Tax Withholding, Share-based Payment Arrangement		(76)	(81)
Proceeds from (Payments for) Other Financing Activities		(33)	(15)
Net cash flows used for financing activities		(1,424)	(1,306)
Effect of foreign currency rate changes on cash and restricted cash		(2)	(40)
Net increase (decrease) in cash and restricted cash		255	103
Cash and restricted cash - beginning of period		2,127	1,811
Cash and restricted cash - end of period		2,382	1,914
Supplemental cash flow information
Taxes paid		219	132
Interest paid		$ 99	$ 85

[1] Equity in net income of partially-owned entities includes mark-to-market gains on private equities where we own more than three percent of $242 million and $255 million for the three months ended March 31, 2023 and 2022, respectively. This line item also includes net income of $14 million and $42 million attributable to our investments in Huatai for the three months ended March 31, 2023 and 2022, respectively.