Fair Value of Financial Instruments (Fair Value Inputs Quantitative Information) (Details) (USD $) In Millions, unless otherwise specified												3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2013 Significant Unobservable Inputs (Level 3) [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Corporate bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Foreign government bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Hybrid And redeemable preferred securities [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Equity AFS and trading securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Other assets GLB reserves embedded derivatives [Member]	Mar. 31, 2014 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]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Other liabilities GLB reserves embedded derivatives [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Corporate bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Foreign government bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 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]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Equity AFS and trading securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Other assets GLB reserves embedded derivatives [Member]	Mar. 31, 2014 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]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Minimum [Member] Other liabilities GLB reserves embedded derivatives [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Corporate bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Foreign government bonds [Member] Fixed Maturity AFS Securities [Member]	Mar. 31, 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]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Equity AFS and trading securities [Member]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Other assets GLB reserves embedded derivatives [Member]	Mar. 31, 2014 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]	Mar. 31, 2014 Significant Unobservable Inputs (Level 3) [Member] Discounted Cash Flow Valuation Technique [Member] Maximum [Member] Other liabilities GLB reserves embedded derivatives [Member]
Assets Fair Value Disclosure [Abstract]
Assets Fair Value Disclosure	$ 209,870	$ 204,615	$ 4,668	$ 3,815	$ 1,360	$ 80	$ 20	$ 29	$ 1,022
Liquidity Duration Adjustment												0.70%	1.80%	1.70%	4.30%				9.50%	3.70%	2.30%	6.20%
Liabilities Fair Value Disclosure [Abstract]
Liabilities measured at fair value	$ (3,490)	$ (2,308)	$ (1,411)	$ (85)						$ (1,090)	$ (43)
Fair Value Inputs [Abstract]
Lapse Rate																1.00%	1.00%	1.00%					27.00%	15.00%	27.00%
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%					0.49%		0.49%
Volatility																1.00%		1.00%					28.00%		28.00%