Segment Information (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Summary of assets by segment
Total assets	$ 145,320	$ 148,810
Advice & Wealth Management [Member]
Summary of assets by segment
Total assets	10,848	10,220
Asset Management [Member]
Summary of assets by segment
Total assets	7,890	7,509
Annuities [Member]
Summary of assets by segment
Total assets	93,747	98,535
Protection [Member]
Summary of assets by segment
Total assets	20,358	20,779
Corporate & Other [Member]
Summary of assets by segment
Total assets	$ 12,477	$ 11,767