Fair Value of Financial Instruments (Fair Value Inputs Quantitative Information) (Details) (USD $) In Millions, unless otherwise specified												6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Other Assets GLB Reserves Embedded Derivatives And Reinsurance Recoverable [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Equity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Other Liabilities GLB Reserves Embedded Derivatives [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Future Contract Benefits Indexed Annuity And Universal Life Contracts Embedded Derivatives [Member] Future contract benefits [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Other Assets GLB Reserves Embedded Derivatives [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Equity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Other Liabilities GLB Reserves Embedded Derivatives [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Future Contract Benefits Indexed Annuity And Universal Life Contracts Embedded Derivatives [Member] Future contract benefits [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Other Assets GLB Reserves Embedded Derivatives [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Corporate Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Foreign Government Bonds [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Hybrid And Redeemable Preferred Securities [Member] Fixed Maturity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Equity AFS Securities [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Other Liabilities GLB Reserves Embedded Derivatives [Member]	Jun. 30, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Future Contract Benefits Indexed Annuity And Universal Life Contracts Embedded Derivatives [Member] Future contract benefits [Member]
Assets Fair Value Disclosure [Abstract]
Assets Fair Value Disclosure	$ 217,371	$ 204,615	$ 4,870	$ 3,815	$ 986	$ 1,503	$ 81	$ 20	$ 29
Liquidity Duration Adjustment													0.70%	1.70%	1.90%	4.30%				8.80%	3.40%	1.90%	6.20%
Liabilities Fair Value Disclosure [Abstract]
Liabilities measured at fair value	$ (3,526)	$ (2,308)	$ (1,517)	$ (85)						$ (54)	$ (1,167)
Fair Value Inputs [Abstract]
Lapse Rate												1.00%					1.00%	1.00%	27.00%					27.00%	15.00%
Utilization of guaranteed withdrawal												90.00%					90.00%		100.00%					100.00%
Claims Utilization Factor												60.00%					60.00%		100.00%					100.00%
Premiums Utilization Factor												77.00%					77.00%		132.00%					132.00%
NPR												0.00%					0.00%		0.42%					0.42%
Volatility												1.00%					1.00%		27.00%					27.00%