Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net (loss) income	$ (1,387)	$ 549
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other non-cash items	260	155
Realized capital (gains) losses	(505)	462
Pension and other postretirement remeasurement (gains) losses	(310)	318
Amortization of deferred gain on reinsurance	2	1
Interest credited to contractholder funds	94	132
Loss on disposition of operations	(3,998)	0
Changes in:
Policy benefits and other insurance reserves	817	(654)
Unearned premiums	33	(272)
Deferred policy acquisition costs	(26)	38
Premium installment receivables, net	(124)	26
Reinsurance recoverables, net	(1,201)	24
Income taxes	181	28
Other operating assets and liabilities	(440)	222
Net cash provided by operating activities	1,388	1,027
Proceeds from sales
Fixed income securities	10,290	12,114
Equity securities	992	5,250
Limited partnership interests	152	749
Other investments	328	116
Investment collections
Fixed income securities	737	555
Mortgage loans	134	118
Other investments	109	61
Investment purchases
Fixed income securities	(7,968)	(14,667)
Equity securities	(539)	(1,619)
Limited partnership interests	(322)	(357)
Mortgage loans	0	(142)
Other investments	(603)	(129)
Change in short-term and other investments, net	744	(1,916)
Purchases of property and equipment, net	(61)	(65)
Acquisition of operations, net of cash acquired	(3,480)	0
Net cash provided by investing activities	513	68
Cash flows from financing activities
Redemption and repayment of long-term debt	(422)	0
Redemption of preferred stock	(250)	(288)
Contractholder fund deposits	252	246
Contractholder fund withdrawals	(374)	(471)
Dividends paid on common stock	(164)	(159)
Dividends paid on preferred stock	(27)	(29)
Treasury stock purchases	(467)	(414)
Shares reissued under equity incentive plans, net	4	8
Other	(32)	12
Net cash used in financing activities	(1,480)	(1,095)
Net increase in cash, including cash classified as assets held for sale	421	0
Cash from continuing operations at beginning of period	311	273
Cash classified as assets held for sale at beginning of period	66	65
Less: Cash classified as assets held for sale at end of period	89	58
Cash from continuing operations at end of period	$ 709	$ 280