v2.4.0.6
Supplemental Financial Information - Financial Income and Expense (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Component of Operating Other Cost and Expense [Line Items]      
Interest income $ 4 $ 5 $ 2
Interest expense (270) (312) (320)
Total interest expense, net (266) (307) (318)
Net gain (loss) on extinguishment of debt (161) (32) 57
Sale of securities and other financial assets     8
Foreign exchange rate results 28 128 (331)
Miscellaneous financing costs/income, net (38) (46) (44)
Total other financial income and expense (171) 50 (310)
Total $ (437) $ (257) $ (628)