CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues
Premiums (net of reinsurance ceded of $149, $158 and $167)	$ 690	$ 592	$ 600
Contract charges (net of reinsurance ceded of $191, $189 and $189)	703	717	738
Net investment income	1,777	1,659	1,819
Realized capital gains and losses:
Total other-than-temporary impairment (“OTTI”) losses	(46)	(120)	(144)
OTTI losses reclassified to (from) other comprehensive income	1	7	16
Net OTTI losses recognized in earnings	(45)	(113)	(128)
Sales and other realized capital gains and losses	94	36	393
Total realized capital gains and losses	49	(77)	265
Total revenues	3,219	2,891	3,422
Costs and expenses
Contract benefits (net of reinsurance ceded of $208, $224 and $237)	1,430	1,387	1,406
Interest credited to contractholder funds (net of reinsurance ceded of $46, $46 and $40)	639	677	717
Amortization of deferred policy acquisition costs	152	134	151
Operating costs and expenses	281	219	273
Restructuring and related charges	2	1	0
Interest expense	4	15	16
Total costs and expenses	2,508	2,433	2,563
Gain on disposition of operations	7	5	3
Income from operations before income tax expense	718	463	862
Income tax (benefit) expense	(278)	144	301
Net income	996	319	561
Other comprehensive income (loss), after-tax
Change in unrealized net capital gains and losses	5	153	(854)
Change in unrealized foreign currency translation adjustments	11	4	(4)
Other comprehensive income (loss), after-tax	16	157	(858)
Comprehensive income (loss)	$ 1,012	$ 476	$ (297)