CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Premiums, reinsurance ceded	$ 167	$ 216	$ 367
Contract charges, reinsurance ceded	189	176	251
Contract benefits, reinsurance ceded	237	329	331
Interest credited to contractholder funds, reinsurance ceded	$ 40	$ 27	$ 27