XML 23 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details 3) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Changes in the carrying amount of service and product warranties    
Beginning Balance $ 215 $ 217
Net provisions for warranties issued during the year 40 52
Amounts incurred (47) (45)
Currency translation adjustments and other 3 (9)
Ending Balance $ 211 $ 215