v2.4.0.6
Commitments and Contingencies (Details 1) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Warranties    
Warranty accrual - January 1 $ 42 $ 38
Net changes for product warranties in the period 23 21
Settlement of warranty claims (23) (25)
Other (1) 1
Warranty accrual - September 30 $ 41 $ 35