Derivatives and Hedging Activities (Notional and Related Party Information) (Details 3) (Derivatives not designated as hedging instruments [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
GMWB and GMAB embedded derivatives [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	$ 132,000	$ 139,700
Macro hedge program [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	2,700	2,000
Freestanding non-VA derivatives [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	2,000	1,600
Seed money [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	97	111
Foreign exchange contracts [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	11	30
Deferred compensation [Member]
Summary of the impact of derivatives not designated as hedging instruments on the Consolidated Statements of Operations
Derivative, notional amount	$ 278	$ 224