Segment Information (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Summary of assets by segment
Total assets	$ 151,448	$ 148,810
Advice & Wealth Management [Member]
Summary of assets by segment
Total assets	10,731	10,220
Asset Management [Member]
Summary of assets by segment
Total assets	8,231	7,509
Annuities [Member]
Summary of assets by segment
Total assets	99,665	98,535
Protection [Member]
Summary of assets by segment
Total assets	21,632	20,779
Corporate & Other [Member]
Summary of assets by segment
Total assets	$ 11,189	$ 11,767