Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities
Net income	$ 291	$ 260
Adjustments to reconcile net income to net cash flows provided by operating activities:
Deferred income tax expense	29	72
Trading portfolio activity	(1)	(6)
Net realized investment gains	(12)	(36)
Equity method investees	(2)	38
Net amortization of investments	(15)	(12)
Depreciation and amortization	20	21
Changes in:
Receivables, net	(215)	89
Accrued investment income	(3)	(26)
Deferred acquisition costs	(29)	(24)
Insurance reserves	311	135
Other assets	(72)	(37)
Other liabilities	(99)	(206)
Other, net	15	14
Total adjustments	(73)	22
Net cash flows provided by operating activities	218	282
Dispositions:
Fixed maturity securities - sales	2,576	1,359
Fixed maturity securities - maturities, calls and redemptions	531	823
Equity securities	7	16
Limited partnerships	69	57
Mortgage loans	11	3
Purchases:
Fixed maturity securities	(2,690)	(2,097)
Equity securities	(98)	(7)
Limited partnerships	(62)	(18)
Mortgage loans	(36)	(23)
Change in other investments	(4)	(1)
Change in short term investments	208	271
Purchases of property and equipment	(38)	(30)
Other, net	15	1
Net cash flows provided by investing activities	489	354
Cash Flows from Financing Activities
Dividends paid to common stockholders	(624)	(609)
Repayment of debt	(150)	0
Other, net	(7)	0
Net cash flows used by financing activities	(781)	(609)
Effect of foreign exchange rate changes on cash	1	1
Net change in cash	(73)	28
Cash, beginning of year	355	271
Cash, end of period	$ 282	$ 299