Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net earnings	$ 1,370	$ 1,745
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	(65)	(17)
Capitalization of deferred policy acquisition costs	(604)	(712)
Amortization of deferred policy acquisition costs	622	649
Increase in policy liabilities	936	1,019
Change in income tax liabilities	(117)	(268)
Realized investment (gains) losses	633	(5)
Other, net	(174)	(54)
Net cash provided (used) by operating activities	2,601	2,357
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities	1,981	2,105
Equity securities	93	154
Held-to-maturity fixed maturity securities	2	203
Commercial mortgage and other loans	685	888
Costs of investments acquired:
Available for sale fixed maturity securities	(2,691)	(4,352)
Equity securities	(150)	(181)
Commercial mortgage and other loans	(2,108)	(1,534)
Other investments, net	(293)	(616)
Settlement of derivatives, net	21	(14)
Cash received (pledged or returned) as collateral, net	459	495
Other, net	(119)	125
Net cash provided (used) by investing activities	(2,120)	(2,727)
Cash flows from financing activities:
Purchases of treasury stock	(637)	(847)
Proceeds from borrowings	1,545	268
Principal payments under debt obligations	(350)	0
Dividends paid to shareholders	(388)	(389)
Change in investment-type contracts, net	(17)	(34)
Treasury stock reissued	21	26
Other, net	(22)	(2)
Net cash provided (used) by financing activities	152	(978)
Effect of exchange rate changes on cash and cash equivalents	(1)	30
Net change in cash and cash equivalents	632	(1,318)
Cash and cash equivalents, beginning of period	4,896	4,337
Cash and cash equivalents, end of period	5,528	3,019
Supplemental disclosures of cash flow information:
Income taxes paid	536	874
Interest paid	97	93
Noncash interest	19	22
Noncash financing activities:
Lease obligations	22	1
Associate stock bonus
Treasury stock issued for:
Treasury stock issued	8	8
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued	14	14
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued	$ 6	$ 5