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Note 6 - Guarantees (Details) - Change in Accrued Warranty Obligations (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Change in Accrued Warranty Obligations [Abstract]  
Accrued warranty obligations $ 13
Actual warranty experience during 2014 (5)
2014 warranty provisions 2
Accrued warranty obligations $ 10