v3.3.1.900
Debt CCFC Term Loans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Debt Instrument [Line Items]      
Long-term Debt $ 11,292 $ 11,122  
Incremental CCFC Term Loans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Face Amount     $ 425
Long Term Debt net of Original Issuance Disount 98.75%    
Secured Debt [Member]      
Debt Instrument [Line Items]      
Long-term Debt $ 1,580 $ 1,596  
Debt Instrument, Interest Rate, Effective Percentage [1] 3.40% 3.40%  
Long Term Debt net of Original Issuance Disount 99.75%    
Percentage of principal amount of Term Loan to be paid quarterly 0.25%    
CCFC Term Loan B-1 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Face Amount $ 900    
Term Loan Period 7 years    
CCFC Term Loan B-2 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Face Amount $ 300    
Term Loan Period 8 years 6 months    
Federal Funds Effective Rate [Member] | Secured Debt [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 0.50%    
Prime Rate Or The Eurodollar Rate For a One Month Interest Period [Member] | CCFC Term Loan B-1 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.25%    
Prime Rate Or The Eurodollar Rate For a One Month Interest Period [Member] | CCFC Term Loan B-2 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 1.50%    
London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum 0.75%    
London Interbank Offered Rate (LIBOR) [Member] | CCFC Term Loan B-1 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 2.25%    
London Interbank Offered Rate (LIBOR) [Member] | CCFC Term Loan B-2 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Basis Spread on Variable Rate 2.50%    
[1] Our weighted average interest rate calculation includes the amortization of deferred financing costs and debt discount.