SCHEDULE V - VALUATION ALLOWANCES AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for reinsurance recoverables
Valuation allowances and qualifying accounts
Balance as of beginning of period	$ 80	$ 95	$ 92
Additions charged to costs and expenses	5	(15)	3
Deductions	1	0	0
Balance as of end of period	84	80	95
Allowance for premium installment receivable
Valuation allowances and qualifying accounts
Balance as of beginning of period	90	83	77
Additions charged to costs and expenses	107	107	99
Deductions	113	100	93
Balance as of end of period	84	90	83
Allowance for deferred tax assets
Valuation allowances and qualifying accounts
Balance as of beginning of period	0	0	0
Additions charged to costs and expenses	0	0	0
Deductions	0	0	0
Balance as of end of period	0	0	0
Allowance for estimated losses on mortgage loans
Valuation allowances and qualifying accounts
Balance as of beginning of period	3	8	21
Additions charged to costs and expenses	0	(4)	(5)
Deductions	0	1	8
Balance as of end of period	$ 3	$ 3	$ 8