CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Cash flows from operating activities:
Net income (loss)	$ (6,056)	$ (349)	$ 2,222
(Income) loss from discontinued operations	(4)	90	0
Noncash revenues, expenses, gains and losses included in income:
Net gains on sales of securities available for sale and other assets	(431)	(2,033)	(1,111)
Net (gains) losses on sales of divested businesses	(68)	(545)	11
(Gains) losses on extinguishment of debt	(5)	74	756
Unrealized (gains) losses in earnings - net	79	1,465	(522)
Equity in income from equity method investments, net of dividends or distributions	(401)	(54)	(481)
Depreciation and other amortization	3,874	4,090	4,629
Impairments of assets	685	1,116	1,500
Changes in operating assets and liabilities:
Insurance reserves	2,637	5,325	1,645
Premiums and other receivables and payables - net	410	536	(70)
Reinsurance assets and funds held under reinsurance treaties	(10,870)	(1,804)	1,525
Capitalization of deferred policy acquisition costs	(4,819)	(5,216)	(5,808)
Current and deferred income taxes - net	6,981	(308)	548
Other, net	(597)	(4)	(1,967)
Total adjustments	(2,525)	2,642	655
Net cash provided by (used in) operating activities	(8,585)	2,383	2,877
Sales or distribution of:
Available for sale securities	31,082	30,103	28,721
Other securities	3,792	4,164	6,055
Other invested assets	7,664	9,554	8,002
Divested businesses, net	792	2,809	0
Maturities of fixed maturity securities available for sale	29,011	25,749	24,734
Principal payments received on and sales of mortgage and other loans receivable	5,742	6,074	5,104
Purchases of:
Available for sale securities	(49,856)	(54,978)	(48,848)
Other securities	(1,147)	(935)	(2,704)
Other invested assets	(2,874)	(3,421)	(3,573)
Mortgage and other loans receivable	(9,369)	(10,651)	(10,140)
Net change in restricted cash	(121)	385	1,457
Net change in short-term investments	2,098	(3,089)	1,163
Other, net	(2,143)	(1,020)	(1,509)
Net cash provided by (used in) investing activities	14,671	4,744	8,462
Proceeds from (payments for)
Policyholder contract deposits	17,908	18,100	17,029
Policyholder contract withdrawals	(15,785)	(14,041)	(14,619)
Issuance of long-term debt	3,356	5,954	6,867
Repayments of long-term debt	(3,698)	(4,082)	(9,805)
Purchase of Common Stock	(6,275)	(11,460)	(10,691)
Dividends paid	(1,172)	(1,372)	(1,028)
Other, net	(31)	68	818
Net cash provided by (used in) financing activities	(5,697)	(6,833)	(11,429)
Effect of exchange rate changes on cash	(28)	52	(39)
Net increase (decrease) in cash	361	346	(129)
Cash at beginning of year	1,868	1,629	1,758
Change in cash of businesses held for sale	133	(107)	0
Cash at end of Period	$ 2,362	$ 1,868	$ 1,629