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Changes in Warranty Liabilities (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Balance, beginning of period $ 72 $ 85
Amounts accrued for current period sales 9 10
Adjustments of prior accrual estimates 1 1
Settlements of warranty claims (6) (13)
Currency impact 1 2
Balance, end of period $ 77 $ 85