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Aggregate Funding Levels of Defined Benefit Pension Plans (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
United States Pension Plans of US Entity, Defined Benefit
   
Plans with fair value of plan assets in excess of obligations:    
Accumulated benefit obligation $ 15 $ 17
Projected benefit obligation 15 17
Fair value of plan assets 16 17
Plans with obligations in excess of fair value of plan assets:    
Accumulated benefit obligation 1,790 2,044
Projected benefit obligation 1,790 2,044
Fair value of plan assets 1,633 1,717
Foreign Pension Plans, Defined Benefit
   
Plans with fair value of plan assets in excess of obligations:    
Accumulated benefit obligation 14 16
Projected benefit obligation 15 17
Fair value of plan assets 22 24
Plans with obligations in excess of fair value of plan assets:    
Accumulated benefit obligation 266 260
Projected benefit obligation 298 292
Fair value of plan assets $ 20 $ 18