Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net earnings	$ 4,659	$ 4,418	$ 4,231
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	(133)	5	72
Capitalization of deferred policy acquisition costs	(1,086)	(1,054)	(1,063)
Amortization of deferred policy acquisition costs	816	792	835
Increase in policy liabilities	(552)	726	774
Change in income tax liabilities	(967)	(509)	96
Net investment (gains) losses	(590)	(363)	(468)
Other, net	1,043	(136)	574
Net cash provided (used) by operating activities	3,190	3,879	5,051
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities	3,811	4,418	4,157
Equity securities	404	570	264
Held-to-maturity fixed maturity securities	3	3	4
Commercial mortgage and other loans	1,641	2,190	4,099
Costs of investments acquired:
Available for sale fixed maturity securities	(2,801)	(3,514)	(5,813)
Equity securities	(357)	(461)	(492)
Commercial mortgage and other loans	(996)	(3,897)	(5,282)
Other investments, net	(417)	(227)	(1,066)
Settlement of derivatives, net	79	(61)	199
Cash received (pledged or returned) as collateral, net	(401)	(673)	1,511
Other, net	(149)	112	41
Net cash provided (used) by investing activities	817	(1,540)	(2,378)
Cash flows from financing activities:
Purchases of treasury stock	(2,801)	(2,401)	(2,301)
Proceeds from borrowings	204	1,277	1,153
Principal payments under debt obligations	0	(1,416)	(700)
Dividends paid to shareholders	(966)	(979)	(855)
Change in investment-type contracts, net	(160)	(83)	(36)
Treasury stock reissued	17	17	26
Other, net	(17)	34	(26)
Net cash provided (used) by financing activities	(3,723)	(3,551)	(2,739)
Effect of exchange rate changes on cash and cash equivalents	79	104	(24)
Net change in cash and cash equivalents	363	(1,108)	(90)
Cash and cash equivalents, beginning of period	3,943	5,051	5,141
Cash and cash equivalents, end of period	4,306	3,943	5,051
Supplemental disclosures of cash flow information:
Income taxes paid	1,569	961	880
Interest paid	185	211	213
Noncash interest	10	14	24
Noncash real estate acquired in satisfaction of debt	217	0	0
Noncash financing activities:
Lease obligations	75	102	46
Associate stock bonus
Treasury stock issued for:
Treasury stock issued	17	14	19
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued	37	37	32
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued	$ 5	$ 6	$ 4