Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (DAC and VOBA) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Policy Acquisition Costs and Value of Business Acquired [Abstract]
Beginning Balance of DAC	$ 17,150	$ 15,240	$ 13,377
Beginning Balance of VOBA	7,611	9,379	11,088
Capitalizations of DAC	4,786	5,289	5,558
Acquisitions of VOBA	947	55	11
Net investment gains (losses) of DAC and net derivative gains (losses) of DAC	192	(40)	(478)
Net investment gains (losses) of VOBA and net derivative gains (losses) of VOBA	3	(1)	(49)
Other expenses of DAC	(2,812)	(2,875)	(2,614)
Other expenses of VOBA	(933)	(1,283)	(1,757)
Total amortization of DAC	(2,620)	(2,915)	(3,092)
Total amortization of VOBA	(930)	(1,284)	(1,806)
Unrealized investment gains (losses) of DAC	924	(516)	(427)
Unrealized investment gains (losses) of VOBA	358	(197)	(361)
Effect of foreign currency translation and other of DAC	(466)	52	(176)
Effect of foreign currency translation and other of VOBA	(1,054)	(342)	447
Ending Balance of DAC	19,774	17,150	15,240
Ending Balance of VOBA	6,932	7,611	9,379
Balance, end of period	$ 26,706	$ 24,761	$ 24,619