v2.4.0.8
Debt Maturing Within One Year (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Short-term Debt [Line Items]    
Long-term debt maturing within one year $ 3,486 $ 3,869
Commercial paper and other 447 500
Total debt maturing within one year $ 3,933 $ 4,369