Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income	$ 690	$ 1,000	$ 813
Adjustments to reconcile net income to net cash flows provided by operating activities:
Deferred income tax benefit	(49)	(46)	(20)
Trading portfolio activity	(5)	(16)	0
Net investment losses (gains)	54	(29)	52
Equity method investees	(8)	11	330
Net amortization of investments	(67)	(89)	(70)
Depreciation and amortization	60	68	79
Changes in:
Receivables, net	(409)	137	(229)
Accrued investment income	16	(3)	19
Deferred acquisition costs	(43)	(26)	(6)
Insurance reserves	1,681	358	482
Other, net	(145)	(225)	(223)
Net cash flows provided by operating activities	1,775	1,140	1,227
Dispositions:
Fixed maturity securities - sales	5,904	5,842	8,408
Fixed maturity securities - maturities, calls and redemptions	3,760	2,997	2,370
Equity securities	355	214	89
Limited partnerships	373	479	343
Mortgage loans	74	143	128
Purchases:
Fixed maturity securities	(10,269)	(8,661)	(10,785)
Equity securities	(452)	(186)	(258)
Limited partnerships	(224)	(198)	(419)
Mortgage loans	(172)	(298)	(128)
Change in other investments	(8)	(11)	(12)
Change in short term investments	(39)	(535)	168
Purchases of property and equipment	(23)	(26)	(99)
Other, net	16	15	18
Net cash flows used by investing activities	(705)	(225)	(177)
Cash Flows from Financing Activities
Dividends paid to common stockholders	(950)	(929)	(896)
Proceeds from the issuance of debt	495	496	0
Repayment of debt	(419)	(520)	(180)
Purchase of treasury stock	(18)	(23)	0
Other, net	(10)	(12)	(9)
Net cash flows used by financing activities	(902)	(988)	(1,085)
Effect of foreign exchange rate changes on cash	9	5	(10)
Net change in cash	177	(68)	(45)
Cash, beginning of year	242	310	355
Cash, end of period	$ 419	$ 242	$ 310