Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes Paid, Net	$ 210	$ (80)	$ 187
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase	268	264
Proceeds from Limited Partnership Investments	395	252	152
Payments to Acquire Limited Partnership Interests	151	199	104
Other Significant Noncash Transaction, Value of Consideration Given	0	0	4
Operating Activities
Net Cash Provided by (Used in) Operating Activities	784	682	669
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	282	500	677
Realized Gain (Loss) on Marketable Securities, Cost Method Investments, and Other Investments	(163)	(146)	577
Adjustments to reconcile net income to net cash provided by operating activities
Amortization of deferred policy acquisition costs	(114)	(69)	(206)
Additions to deferred policy acquisition costs and present value of future profits	(7)	(7)	(14)
Change in reserve for future policy benefits and unpaid losses and loss adjustment expenses and unearned premiums	111	276	586
Change in reinsurance recoverables	117	(14)	170
Increase (Decrease) in Other Operating Assets and Liabilities, Net	(316)	(222)	(912)
Change in accrued and deferred income taxes	278	(62)	302
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0	28	23
Depreciation and amortization (accretion), net	9	(14)	6
Other Operating Activities, Cash Flow Statement	33	38	248
Proceeds from the sale/maturity/prepayment of:
Fixed maturities, available-for-sale	10,152	11,465	10,333
Fixed maturities, fair value option	68	107	358
Equity securities, available-for-sale	321	586	107
Mortgage loans	371	467	377
Payments for the purchase of:
Fixed maturities and short-term investments, available-for-sale	(8,889)	(11,755)	(7,385)
Fixed maturities, fair value option	(29)	(67)	(217)
Equity securities, available-for-sale	(58)	(535)	(363)
Mortgage loans	(263)	(282)	(146)
Net payments for derivatives	(261)	(167)	(66)
Net increase (decrease) in policy loans	2	(31)	(14)
Payments for (Proceeds from) Short-term Investments	(769)	1,604	(556)
Other investing activities, net	(25)	1	34
Net cash provided by investing activities	864	1,446	2,510
Financing Activities
Deposits and other additions to investment and universal life-type contracts	4,162	4,674	4,567
Withdrawals and other deductions from investment and universal life-type contracts	14,871	16,972	21,810
Net Change Contract Holders Funds	9,811	10,987	14,167
Return of capital to parent	752	1,001	275
Net repayments at maturity or settlement of consumer notes	(17)	(33)	(13)
Net cash used for financing activities	(1,399)	(2,081)	(3,364)
Foreign exchange rate effect on cash	0	0	(3)
Cash, Period Increase (Decrease)	249	47	(188)
Cash — beginning of year	305	258	446
Cash — end of year	$ 554	$ 305	$ 258