Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (DAC and VOBA by Segment) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	$ 26,706	$ 24,761	$ 24,619
Retail [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	12,882	11,500	11,681
Group, Voluntary & Worksite Benefits [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	382	382	377
Corporate Benefit Funding [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	99	96	89
Latin America [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	2,201	1,231	1,050
Asia [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	9,077	9,554	9,554
Europe, the Middle East and Africa [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	2,039	1,998	1,866
Corporate & Other [Member]
Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract]
DAC & VOBA	$ 26	$ 0	$ 2