Fair Value of Financial Instruments (Fair Value Inputs Quantitative Information) (Details) (USD $) In Millions, unless otherwise specified							12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2012 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Corporate bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Foreign government bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Hybrid and redeemable preferred securities [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Equity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Indexed annuity and universal life contracts embedded derivatives [Member] Future contract benefits [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] GLB Embedded Derivative Reserves [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Corporate bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Foreign government bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Equity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Indexed annuity and universal life contracts embedded derivatives [Member] Future contract benefits [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] GLB Embedded Derivative Reserves [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Corporate bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Foreign government bonds [Member] Fixed maturity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Equity securities [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Indexed annuity and universal life contracts embedded derivatives [Member] Future contract benefits [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] GLB Embedded Derivative Reserves [Member]
Assets Fair Value Disclosure [Abstract]
Assets Fair Value Disclosure	$ 205,859	$ 187,710	$ 5,059	$ 4,055	$ 1,082	$ 79	$ 20	$ 28
Liquidity Duration Adjustment							2.40%				0.80%	2.30%	4.30%			10.60%	3.90%	5.90%
Liabilities Fair Value Disclosure [Abstract]
Liabilities measured at fair value	$ (2,308)	$ (3,198)	$ (85)	$ (1,780)					$ (1,048)	$ 1,244
Fair Value Inputs [Abstract]
Lapse rate														1.00%	1.00%				15.00%	27.00%
Utilization of guaranteed withdrawal															90.00%					100.00%
Claims utilization factor															60.00%					100.00%
Premiums utilization Factor															77.00%					132.00%
NPR															0.00%					0.53%
Volatility															1.00%					28.00%