Other Expenses (Other Expenses) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Income and Expenses [Abstract]
Compensation	$ 1,205	$ 1,291
Pension, postretirement and postemployment benefit costs	120	123
Commissions	1,288	1,388
Volume-related costs	201	183
Capitalization of DAC	(1,046)	(1,256)
Amortization of DAC and VOBA	1,058	824
Amortization of negative VOBA	(115)	(146)
Interest expense on debt	312	321
Premium taxes, licenses and fees	225	159
Professional services	321	303
Rent and related expenses, net of sublease income	85	93
Other	509	855
Total other expenses	$ 4,163	$ 4,138