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Other (Income) Expense, Net - Textual (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2011
Jun. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Other Income Expense [Line Items]        
Gain on sale of manufacturing facilities and related assets       $ 127
Litigation charges       500
Interest paid     583 261
Cash received from interest rate swap termination 113 175   288
Accelerated accretion of time value of money discounts     35  
Gain on disposition of interest in equity method investment $ 136     $ 136