Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net earnings	$ 4,325	$ 4,778	$ 3,304
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	72	52	(32)
Capitalization of deferred policy acquisition costs	(1,063)	(1,142)	(1,452)
Amortization of deferred policy acquisition costs	1,170	1,214	1,282
Increase in policy liabilities	976	2,023	2,104
Change in income tax liabilities	118	(1,419)	(244)
Net investment (gains) losses	(468)	270	135
Other, net	(79)	182	358
Net cash provided (used) by operating activities	5,051	5,958	5,455
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities	4,157	3,725	5,284
Equity securities	264	234	650
Held-to-maturity fixed maturity securities	4	4	622
Commercial mortgage and other loans	4,099	2,085	1,814
Costs of investments acquired:
Available for sale fixed maturity securities	(5,813)	(4,772)	(6,934)
Equity securities	(492)	(498)	(347)
Commercial mortgage and other loans	(5,282)	(3,263)	(4,401)
Other investments, net	(1,066)	(860)	(653)
Settlement of derivatives, net	199	18	(9)
Cash received (pledged or returned) as collateral, net	1,511	(1,027)	926
Other, net	41	(265)	(123)
Net cash provided (used) by investing activities	(2,378)	(4,619)	(3,171)
Cash flows from financing activities:
Purchases of treasury stock	(2,301)	(1,537)	(1,627)
Proceeds from borrowings	1,153	1,545	615
Principal payments under debt obligations	(700)	(350)	0
Dividends paid to shareholders	(855)	(769)	(771)
Change in investment-type contracts, net	(36)	(11)	(1)
Treasury stock reissued	26	34	49
Other, net	(26)	(27)	22
Net cash provided (used) by financing activities	(2,739)	(1,115)	(1,713)
Effect of exchange rate changes on cash and cash equivalents	(24)	21	(12)
Net change in cash and cash equivalents	(90)	245	559
Cash and cash equivalents, beginning of period	5,141	4,896	4,337
Cash and cash equivalents, end of period	5,051	5,141	4,896
Supplemental disclosures of cash flow information:
Income taxes paid	880	800	1,384
Interest paid	213	210	190
Noncash interest	24	32	37
Noncash financing activities:
Lease obligations	46	56	132
Associate stock bonus
Treasury stock issued for:
Treasury stock issued	19	19	15
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued	32	29	30
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued	$ 4	$ 6	$ 5