v2.4.0.8
Fair Value Measurements - Financial Assets/Liabilities Table (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value, Net Asset (Liability) $ (1) $ (2)
Other Current Assets [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Assets, Fair Value Disclosure 57 80
Other Current Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure (58) (82)
Fair Value, Inputs, Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value, Net Asset (Liability) (1) (2)
Fair Value, Inputs, Level 1 [Member] | Other Current Assets [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Assets, Fair Value Disclosure 57 80
Fair Value, Inputs, Level 1 [Member] | Other Current Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure (58) (82)
Fair Value, Inputs, Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value, Net Asset (Liability) 0 0
Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Assets, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 2 [Member] | Other Current Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value, Net Asset (Liability) 0 0
Fair Value, Inputs, Level 3 [Member] | Other Current Assets [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Assets, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Other Current Liabilities [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure $ 0 $ 0