Derivatives and Hedging Activities (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	$ 3,188		$ 3,418
Derivative liability, fair value	4,089		4,370
Designated as Hedging Instrument [Member] | Fair value hedges
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	83		82
Derivatives not designated as hedging instruments
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	3,105		3,336
Derivative liability, fair value	4,089		4,370
Derivatives not designated as hedging instruments | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	3,009		3,230
Derivative liability, fair value	3,839		4,125
Derivatives not designated as hedging instruments | Other Derivatives [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	96		106
Derivative liability, fair value	250		245
Other assets | Designated as Hedging Instrument [Member] | Fair value hedges | Fixed rate debt
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	83		82
Other assets | Derivatives not designated as hedging instruments | Interest rate derivatives | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	1,452		1,484
Other assets | Derivatives not designated as hedging instruments | Interest rate derivatives | Macro hedge program [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	10		4
Other assets | Derivatives not designated as hedging instruments | Equity derivatives | IUL
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	28		27
Other assets | Derivatives not designated as hedging instruments | Equity derivatives | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	1,553		1,741
Other assets | Derivatives not designated as hedging instruments | Equity derivatives | Stock Market Certificates [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	55		73
Other assets | Derivatives not designated as hedging instruments | Credit derivative contract | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	1		3
Other assets | Derivatives not designated as hedging instruments | Foreign exchange contract | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	3		2
Other assets | Derivatives not designated as hedging instruments | Foreign exchange contract | Foreign Currency [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative asset, fair value	3		2
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Interest rate derivatives | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	1,429		1,672
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Interest rate derivatives | Macro hedge program [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	13		21
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Equity derivatives | IUL
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	9		13
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Equity derivatives | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	2,881		3,028
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Equity derivatives | Macro hedge program [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	12		8
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Equity derivatives | Stock Market Certificates [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	49		66
Other Liabilities [Member] | Derivatives not designated as hedging instruments | Foreign exchange contract | Foreign Currency [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	2
Policyholder Account Balances, Future Policy Benefits and Claims [Member] | Derivatives not designated as hedging instruments | Equity derivatives | EIA embedded derivatives
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	5		5
Policyholder Account Balances, Future Policy Benefits and Claims [Member] | Derivatives not designated as hedging instruments | Equity derivatives | IUL embedded derivatives
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	154		125
Policyholder Account Balances, Future Policy Benefits and Claims [Member] | Derivatives not designated as hedging instruments | GMWB and GMAB Embedded Derivatives [Member] | Guaranteed Minimum Withdrawal Benefit and Accumulation Benefit [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	(471)	[1],[2]	(575)	[1],[2]
Deposits [Member] | Derivatives not designated as hedging instruments | Equity derivatives | Stock Market Certificates Embedded Derivatives [Member]
Balance sheet location and the gross fair value of derivative instruments, including embedded derivatives, by type of derivative and product
Derivative liability, fair value	$ 6		$ 7

[1] The fair values of GMWB and GMAB embedded derivatives fluctuate based on changes in equity, interest rate and credit markets.

[2] The fair value of the GMWB and GMAB embedded derivatives was a net asset at March 31, 2014 and December 31, 2013 and the amount is reported as a contra liability.