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Changes in Benefit Obligations Plan Assets Funded Status and Reconciliation of Funded Status to Amounts Recognized in Consolidated Balance Sheets and in Accumulated Other Comprehensive Income (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at December 31 $ 76 $ 69
Pension Benefit Obligations
    
Defined Benefit Plan Disclosure [Line Items]    
Amounts Recognized in the Balance Sheet - Noncurrent assets 1  
Amounts Recognized in the Balance Sheet - Current liabilities (1) (1)
Amounts Recognized in the Balance Sheet - Noncurrent liabilities (53) (52)
Amounts Recognized in the Balance Sheet - Net amounts recognized (53) (53)
Amounts Recognized in Accumulated Other Comprehensive Income - Net actuarial loss (gain) 26 32
Amounts Recognized in Accumulated Other Comprehensive Income - Prior service credit (2) (2)
Amounts Recognized in Accumulated Other Comprehensive Income - Total 24 30
Pension Benefit Obligations | Change In Benefit Obligation
    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation at January 1 122 108
Service cost 8 8
Interest cost 4 4
Plan participant contribution 1 1
Actuarial loss (gain) 6 9
Benefits paid (6) (7)
Currency translation adjustments (6) (1)
Benefit obligation at December 31 129 122
Pension Benefit Obligations | Change in Plan Assets
    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at January 1 69 59
Actual return on plan assets 9 5
Company contributions 10 12
Plan participant contribution 1 1
Benefits paid (6) (7)
Currency translation adjustments (7) (1)
Fair value of plan assets at December 31 76 69
Funded status (underfunded) (53) (53)
Postemployment Benefit Obligations
    
Defined Benefit Plan Disclosure [Line Items]    
Amounts Recognized in the Balance Sheet - Current liabilities (4) (4)
Amounts Recognized in the Balance Sheet - Noncurrent liabilities (23) (21)
Amounts Recognized in the Balance Sheet - Net amounts recognized (27) (25)
Amounts Recognized in Accumulated Other Comprehensive Income - Net actuarial loss (gain) (12) (16)
Amounts Recognized in Accumulated Other Comprehensive Income - Prior service credit 0 0
Amounts Recognized in Accumulated Other Comprehensive Income - Total (12) (16)
Postemployment Benefit Obligations | Change In Benefit Obligation
    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation at January 1 25 33
Service cost 3 4
Interest cost 1 1
Plan participant contribution 0 0
Actuarial loss (gain) 3 (11)
Benefits paid (4) (2)
Currency translation adjustments (1) 0
Benefit obligation at December 31 27 25
Postemployment Benefit Obligations | Change in Plan Assets
    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at January 1 0 0
Actual return on plan assets 0 0
Company contributions 0 0
Plan participant contribution 0 0
Benefits paid 0 0
Currency translation adjustments 0 0
Fair value of plan assets at December 31 0 0
Funded status (underfunded) $ (27) $ (25)