Variable Annuity and Insurance Guarantees (Details 3) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Mutual funds
Distribution of separate account balances by asset type for variable annuity contracts providing guaranteed benefits:
Separate account balance	$ 59,470	$ 56,837
Equity
Distribution of separate account balances by asset type for variable annuity contracts providing guaranteed benefits:
Separate account balance	33,703	32,310
Bond
Distribution of separate account balances by asset type for variable annuity contracts providing guaranteed benefits:
Separate account balance	23,683	22,319
Other mutual funds
Distribution of separate account balances by asset type for variable annuity contracts providing guaranteed benefits:
Separate account balance	$ 2,084	$ 2,208