Consolidated Reinsurance (Consolidated Reinsurance) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums, Life Insurance in Force	$ 4,517,797	$ 4,432,178	$ 4,263,421
Ceded Premiums, Life Insurance in Force	763,754	761,993	754,781
Assumed Premiums, Life Insurance in Force	607,591	594,062	604,555
Premiums, Net, Life Insurance in Force	4,361,634	4,264,247	4,113,195
Life Insurance in Force Premiums, Percentage Assumed to Net	13.90%	13.90%	14.70%
Consolidated Reinsurance
Gross Amount	38,476	38,719	37,185
Ceded	2,274	2,232	2,308
Assumed	1,472	1,488	1,484
Net premiums	37,674	37,975	36,361
% Amount Assumed to Net	3.90%	3.90%	4.10%
Life Insurance [Member]
Consolidated Reinsurance
Gross Amount	22,206	22,006	21,930
Ceded	1,862	1,550	1,670
Assumed	1,269	1,268	1,198
Net premiums	21,613	21,724	21,458
% Amount Assumed to Net	5.90%	5.80%	5.60%
Accident and Health Insurance [Member]
Consolidated Reinsurance
Gross Amount	12,957	13,567	12,186
Ceded	333	605	568
Assumed	196	211	275
Net premiums	12,820	13,173	11,893
% Amount Assumed to Net	1.50%	1.60%	2.30%
Property and Casualty Insurance [Member]
Consolidated Reinsurance
Gross Amount	3,313	3,146	3,069
Ceded	79	77	70
Assumed	7	9	11
Net premiums	$ 3,241	$ 3,078	$ 3,010
% Amount Assumed to Net	0.20%	0.30%	0.40%