Segment Information (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Summary of assets by segment
Total assets	$ 145,342	$ 148,810
Advice & Wealth Management [Member]
Summary of assets by segment
Total assets	11,338	10,220
Asset Management [Member]
Summary of assets by segment
Total assets	7,931	7,509
Annuities [Member]
Summary of assets by segment
Total assets	94,002	98,535
Protection [Member]
Summary of assets by segment
Total assets	20,755	20,779
Corporate & Other [Member]
Summary of assets by segment
Total assets	$ 11,316	$ 11,767