v2.4.0.6
Receivables Monetization (Effect on Income From Receivables Monetization and Cash Flows on Transfers)(Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Receivables Monetization [Abstract]    
Net cash proceeds (payments) on transfers $ (339) $ (90)