XML 46 R59.htm IDEA: XBRL DOCUMENT v2.4.0.8
Activity in Warranty Accrual for Product Warranty (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance, beginning of the period $ 289 $ 278
Provision 42 45
Amounts charged to the accrual (57) (40)
Balance, end of the period $ 274 $ 283