XML 29 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements (Details) (USD $)
Mar. 31, 2014
Dec. 31, 2013
Fair Value, Inputs, Level 2
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term Debt, Fair Value $ 3,400,000,000 $ 2,600,000,000
Fair Value, Measurements, Recurring
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 736,000,000 [1] 465,000,000 [1]
Net derivative contracts 6,000,000 (25,000,000)
Available for sale investments 43,000,000 18,000,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Level 3 Assets and Liabilities 0 0
Fair Value, Measurements, Recurring | Total Cost Basis
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 736,000,000 [1] 465,000,000 [1]
Net derivative contracts 0 0
Available for sale investments 21,000,000 8,000,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 736,000,000 [1] 465,000,000 [1]
Net derivative contracts 0 0
Available for sale investments 43,000,000 18,000,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 0 [1] 0 [1]
Net derivative contracts 6,000,000 (25,000,000)
Available for sale investments $ 0 $ 0
[1] Money market funds are comprised primarily of government obligations and other first tier obligations.