Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net earnings	$ 1,634	$ 1,188	$ 1,394	$ 1,047	$ 2,822	$ 2,441
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities
Change in receivables and advance premiums					(35)	(27)
Capitalization of deferred policy acquisition costs					(525)	(509)
Amortization of deferred policy acquisition costs	202		197		407	405	$ 792
Increase in policy liabilities					(37)	509
Change in income tax liabilities					(420)	57
Net investment (gains) losses	(555)		(564)		(678)	(686)
Other, net					(447)	(420)
Net cash provided (used) by operating activities					1,087	1,770
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities					1,548	2,164
Equity securities					244	398
Held-to-maturity fixed maturity securities					2	2
Commercial mortgage and other loans					728	1,270
Costs of investments acquired:
Available-for-sale fixed maturity securities					(1,817)	(2,395)
Equity securities					(191)	(320)
Commercial mortgage and other loans					(588)	(2,537)
Other investments, net					(1,247)	(180)
Settlement of derivatives, net					(289)	(330)
Cash received (pledged or returned) as collateral, net					3,427	1,839
Other, net					(84)	172
Net cash provided (used) by investing activities					1,733	83
Cash flows from financing activities:
Purchases of treasury stock					(1,400)	(1,150)
Dividends paid to shareholders					(491)	(498)
Change in investment-type contracts, net					(64)	(41)
Treasury stock reissued					5	10
Other, net					6	35
Net cash provided (used) by financing activities					(1,944)	(1,644)
Effect of exchange rate changes on cash and cash equivalents					(99)	(87)
Net change in cash and cash equivalents					777	122
Cash and cash equivalents, beginning of period		$ 3,943		$ 5,051	3,943	5,051	5,051
Cash and cash equivalents, end of period	$ 4,720		$ 5,173		4,720	5,173	$ 3,943
Supplemental disclosures of cash flow information:
Income taxes paid					765	505
Interest paid					94	104
Noncash interest					6	8
Noncash financing activities:
Lease obligations					43	66
Associate stock bonus
Treasury stock issued for:
Treasury stock issued					9	8
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued					19	19
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued					$ 5	$ 6