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Note 12 - Guarantees (Details) - Change in Accrued Warranty Obligations (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Change in Accrued Warranty Obligations [Abstract]  
Accrued warranty obligations $ 29
Actual warranty experience during 2013 (19)
2013 warranty provisions 10
Accrued warranty obligations $ 20