Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income	$ 2,143	$ 1,723
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other non-cash items	317	248
Realized capital gains and losses	(986)	159
Pension and other postretirement remeasurement gains and losses	140	7
Gain on disposition of operations	(3)	(3)
Interest credited to contractholder funds	318	326
Impairment of purchased intangibles	55	0
Changes in:
Policy benefits and other insurance reserves	211	(22)
Unearned premiums	214	211
Deferred policy acquisition costs	(27)	(80)
Premium installment receivables, net	(209)	(185)
Reinsurance recoverables, net	235	(9)
Income taxes	159	(238)
Other operating assets and liabilities	(505)	(47)
Net cash provided by operating activities	2,062	2,090
Proceeds from sales
Fixed income securities	17,811	19,515
Equity securities	2,098	3,576
Limited partnership interests	391	182
Other investments	223	135
Investment collections
Fixed income securities	1,243	1,442
Mortgage loans	294	315
Other investments	138	235
Investment purchases
Fixed income securities	(17,436)	(20,401)
Equity securities	(4,189)	(3,901)
Limited partnership interests	(672)	(873)
Mortgage loans	(311)	(316)
Other investments	(394)	(535)
Change in short-term investments, net	(213)	(512)
Change in other investments, net	66	(35)
Purchases of property and equipment, net	(173)	(128)
Acquisition of operations	(18)	(10)
Net cash used in investing activities	(1,142)	(1,311)
Cash flows from financing activities
Proceeds from issuance of long-term debt	492	498
Redemption and repayment of long-term debt	(317)	(401)
Proceeds from issuance of preferred stock	0	557
Contractholder fund deposits	504	506
Contractholder fund withdrawals	(876)	(997)
Dividends paid on common stock	(324)	(295)
Dividends paid on preferred stock	(61)	(58)
Treasury stock purchases	(332)	(838)
Shares reissued under equity incentive plans, net	44	28
Other	50	93
Net cash used in financing activities	(820)	(907)
Net increase (decrease) in cash	100	(128)
Cash at beginning of period	499	617
Cash at end of period	$ 599	$ 489

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