Commercial Paper and Long-Term Debt Income Statement Recognition of Fair Value Hedge (Details) (Interest Expense [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Net impact on the Company’s Condensed Consolidated Statements of Operations	$ 0	$ 0	$ 0
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain recognized in interest expense		3	190
Loss recognized in interest expense	(166)
Debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain recognized in interest expense	166
Loss recognized in interest expense		$ (3)	$ (190)