v2.4.0.6
Debt - Schedule of Short-Term Debt (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Standby Letters of Credit [Line Items]    
Other short-term bank borrowings $ 36 $ 35
Current portion of long-term debt 271 17
Total $ 307 $ 52