Derivatives and Hedging Activities Derivatives and Hedging Activities (Cash Flow Hedge Info) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Summary of Cash Flow Hedge Activity [Abstract]
Derivatives designated as cash flow hedges	$ 0
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	6
Longest period of time over which the entity hedges exposure to the variability in future cash flows	5 years
Rollforward of unrealized derivative losses included in accumulated other comprehensive income related to cash flow hedges
Net unrealized derivative losses at the beginning of the period	(17)		(21)
Reclassification of realized losses	3	[1]	4	[1]
Income tax benefit	(1)		(1)
Net unrealized derivative losses at the end of the period	$ (15)		$ (18)

[1] Loss reclassified from AOCI to net investment income on the Consolidated Statements of Income