Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities
Net income	$ 813	$ 899	$ 859
Adjustments to reconcile net income to net cash flows provided by operating activities:
Deferred income tax (benefit) expense	(20)	168	136
Trading portfolio activity	0	9	(9)
Net realized investment losses (gains)	52	(93)	(50)
Equity method investees	330	84	238
Net amortization of investments	(70)	(40)	(27)
Depreciation and amortization	79	88	77
Changes in:
Receivables, net	(229)	92	(130)
Accrued investment income	19	(4)	(3)
Deferred acquisition costs	(6)	(24)	(8)
Insurance reserves	482	22	237
Other assets	(192)	(158)	(95)
Other liabilities	(98)	173	162
Other, net	67	38	29
Total adjustments	414	355	557
Net cash flows provided by operating activities	1,227	1,254	1,416
Dispositions:
Fixed maturity securities - sales	8,408	5,438	5,328
Fixed maturity securities - maturities, calls and redemptions	2,370	3,641	3,219
Equity securities	89	46	81
Limited partnerships	343	192	290
Mortgage loans	128	26	207
Purchases:
Fixed maturity securities	(10,785)	(9,065)	(9,827)
Equity securities	(258)	(166)	0
Limited partnerships	(419)	(171)	(252)
Mortgage loans	(128)	(274)	(120)
Change in other investments	(12)	(3)	7
Change in short term investments	168	(6)	258
Purchases of property and equipment	(99)	(102)	(146)
Disposals of property and equipment	0	0	107
Other, net	18	20	2
Net cash flows used by investing activities	(177)	(424)	(846)
Cash Flows from Financing Activities
Dividends paid to common stockholders	(896)	(842)	(813)
Proceeds from the issuance of debt	0	496	498
Repayment of debt	(180)	(391)	(358)
Other, net	(9)	(18)	0
Net cash flows used by financing activities	(1,085)	(755)	(673)
Effect of foreign exchange rate changes on cash	(10)	9	(13)
Net change in cash	(45)	84	(116)
Cash, beginning of year	355	271	387
Cash, end of year	$ 310	$ 355	$ 271