Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Activities
Net income	$ 2,365	$ 1,737	$ 2,085
Adjustments to reconcile net income to net cash provided by operating activities
Net realized gains	(530)	(34)	(395)
Additional Cash Flow Elements, Operating Activities
Amortization of deferred policy acquisition costs	1,680	1,706	1,622
Additions to deferred policy acquisition costs	(1,751)	(1,666)	(1,635)
Depreciation and amortization	680	562	451
Loss on extinguishment of debt	0	0	(90)
Loss on sale of business	21	48	0
Other operating activities, net	(133)	85	76
Increase in reinsurance recoverables	(582)	(540)	(81)
Net change in accrued and deferred income taxes	85	459	886
Increase in insurance liabilities	2,416	1,426	768
Net change in other assets and other liabilities	(158)	88	(378)
Cash provided by operating activities	4,093	3,871	3,489
Proceeds from the sale/maturity/prepayment of:
Fixed maturities, available-for-sale	22,457	19,534	18,499
Proceeds from Sale and Maturity of Marketable Securities	626	1,485	1,553
Mortgage loans	1,506	948	771
Partnerships	537	167	238
Payments for the purchase of:
Fixed maturities, available-for-sale	(21,754)	(21,112)	(19,881)
Equity securities at fair value	(1,420)	(962)	(1,316)
Mortgage loans	(2,386)	(1,264)	(1,275)
Partnerships	(1,317)	(491)	(303)
Net proceeds from (payments for) derivatives	(7)	112	32
Net additions to property and equipment	(133)	(114)	(105)
Net proceeds from (payments for) short-term investments	(417)	(368)	1,491
Other investing activities, net	(169)	(1)	49
Proceeds from businesses sold, net of cash transferred	11	0	0
Amounts paid for business acquired, net of cash acquired	0	0	(1,901)
Net cash used for investing activities	(2,466)	(2,066)	(2,148)
Financing Activities
Deposits and other additions to investment and universal life-type contracts	89	60	123
Withdrawals and other deductions from investment and universal life-type contracts	(75)	(102)	(124)
Net decrease in securities loaned or sold under agreements to repurchase	0	(587)	(323)
Repayment of debt	0	(500)	(1,583)
Proceeds from the issuance of debt	588	0	1,376
Net issuance (return of) shares under incentive and stock compensation plans	25	(21)	(6)
Treasury stock acquired	(1,702)	(150)	(200)
Payments for Repurchase of Preferred Stock and Preference Stock	(21)	(21)	(21)
Dividends paid on common stock	(485)	(457)	(433)
Net cash used for financing activities	(1,581)	(1,778)	(1,191)
Foreign exchange rate effect on cash	(6)	8	(9)
Net increase in cash and restricted cash, including cash classified within assets held for sale	40	35	141
Less: Net increase (decrease) in cash classified as assets held for sale	(58)	58	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	98	(23)	141
Cash and restricted cash — beginning of period	239	262	121
Cash and restricted cash — end of period	337	239	262
Supplemental Disclosure of Cash Flow Information
Income tax paid (received)	496	(71)	(396)
Interest paid	$ 214	$ 232	$ 261