Segment Information (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Summary of assets by segment
Total assets	$ 148,810	$ 144,576
Advice & Wealth Management [Member]
Summary of assets by segment
Total assets	10,220	9,571
Asset Management [Member]
Summary of assets by segment
Total assets	7,509	7,223
Annuities [Member]
Summary of assets by segment
Total assets	98,535	98,354
Protection [Member]
Summary of assets by segment
Total assets	20,779	19,605
Corporate & Other [Member]
Summary of assets by segment
Total assets	$ 11,767	$ 9,823