SCHEDULE IV - REINSURANCE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Life Insurance In-Force
Gross Amount	$ 406,240	$ 412,215	$ 414,362
Ceded to Other Companies	82,927	87,177	92,252
Assumed from Other Companies	31,427	31,767	33,494
Net Amount	354,740	356,805	355,604
Premiums
Gross Amount	820	844	848
Ceded to Other Companies	539	541	565
Assumed from Other Companies	207	211	213
Premiums	$ 488	$ 514	$ 496
Life Insurance In-Force, Percentage of Amount Assumed to Net	8.90%	8.90%	9.40%
Premiums, Percentage of Amount Assumed to Net	42.10%	41.10%	42.90%
Life insurance and annuities
Premiums
Gross Amount	$ 753	$ 775	$ 770
Ceded to Other Companies	494	492	511
Assumed from Other Companies	197	199	201
Premiums	$ 456	$ 482	$ 460
Premiums, Percentage of Amount Assumed to Net	42.90%	41.40%	43.70%
Accident and health
Premiums
Gross Amount	$ 67	$ 69	$ 78
Ceded to Other Companies	45	49	54
Assumed from Other Companies	10	12	12
Premiums	$ 32	$ 32	$ 36
Premiums, Percentage of Amount Assumed to Net	31.30%	37.50%	33.30%