Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Activities
Net income	$ 273	$ 630
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Net realized capital losses (gains)	231	(163)
Amortization of deferred policy acquisition costs	437	355
Additions to deferred policy acquisition costs	(447)	(373)
Depreciation and amortization	134	108
Other operating activities, net	79	37
Change in assets and liabilities:
Decrease (increase) in reinsurance recoverables	(75)	16
Net change in accrued and deferred income taxes	53	116
Increase in insurance liabilities	235	138
Net change in other assets and other liabilities	(622)	(585)
Net cash provided by operating activities	298	279
Proceeds from the sale/maturity/prepayment of:
Fixed maturities, available-for-sale	3,906	5,072
Fixed maturities, fair value option	3	2
Equity securities, at fair value	645	619
Mortgage loans	329	100
Partnerships	34	68
Payments for the purchase of:
Fixed maturities, available-for-sale	(3,578)	(5,105)
Equity securities, at fair value	(518)	(607)
Mortgage loans	(487)	(31)
Partnerships	(97)	(78)
Net proceeds from derivatives	161	26
Net additions of property and equipment	(23)	(20)
Net proceeds from short-term investments	407	82
Other investing activities, net	(5)	1
Net cash provided by investing activities	777	129
Financing Activities
Deposits and other additions to investment and universal life-type contracts	15
Withdrawals and other deductions from investment and universal life-type contracts	(10)	(24)
Federal Home Loan Bank of Boston (FHLBB) advances	0	50
Net increase (decrease) in securities loaned or sold under agreements to repurchase	(237)	102
Repayment of debt	(500)	(413)
Net return of shares under incentive and stock compensation plans	(32)	(28)
Treasury stock acquired	(150)	0
Dividends paid on preferred stock	(5)	(6)
Dividends paid on common stock	(108)	(109)
Net cash used for financing activities	(1,027)	(428)
Foreign exchange rate effect on cash	(9)	3
Net increase (decrease) in cash and restricted cash	39	(17)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	262	121
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	301	104
Supplemental Disclosure of Cash Flow Information
Income tax paid	1	0
Interest paid	$ 74	$ 41