Segment Information (Details) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Summary of assets by segment
Total assets	$ 135,138	$ 131,214
Advice and Wealth Management
Summary of assets by segment
Total assets	12,072	11,241
Asset Management
Summary of assets by segment
Total assets	7,489	7,854
Annuities
Summary of assets by segment
Total assets	87,869	84,836
Protection
Summary of assets by segment
Total assets	18,826	18,571
Corporate and Other
Summary of assets by segment
Total assets	8,720	8,539
Assets of discontinued operations.
Summary of assets by segment
Total assets	$ 162	$ 173