Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Narrative) (Details)

v3.3.1.900
Long-Term Debt (Narrative) (Details) - USD ($)
12 Months Ended
Apr. 17, 2013
Mar. 18, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Apr. 15, 2015
Mar. 09, 2015
Sep. 08, 2014
Aug. 21, 2014
Mar. 18, 2014
Mar. 01, 2013
Jul. 02, 2012
Mar. 23, 2010
Sep. 25, 2009
Debt Instrument [Line Items]                            
Line of credit facility maximum borrowing capacity             $ 2,250,000,000              
Line of credit facility standby letter of credit             250,000,000              
Line of credit facility uncommitted loan             $ 1,500,000,000              
Debt instrument lower range of basis spread on variable rate             0.25%              
Debt instrument higher range of basis spread on variable rate             1.75%              
Line of credit facility remaining borrowing capacity     $ 434,800,000                      
Line of credit facility interest rate at period end     1.90%                      
Derivative, notional amount                     $ 3,100,000,000      
Loss on extinguishment of debt     $ (21,000,000) $ (48,000,000) $ (57,000,000)                  
Debt weighted average interest rate     3.70%                      
Letters of Credit Outstanding, Amount     $ 22,000,000 $ 18,000,000                    
7.125% Senior Secured Notes [Member]                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage 7.125% 7.125%                     7.125%  
Extinguishment of debt amount $ 376,000,000 $ 124,000,000                        
Total debt                         $ 500,000,000  
Repurchase price of individual bonds including premium 1,035.63 1,039.40                        
Face value of individual bonds repurchased $ 1,000 $ 1,000                        
3.125% Senior Secured Notes due 2019, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     3.125%             3.125%        
Total debt                   $ 400,000,000        
Debt issuance price percentage                   99.828%        
7.5% Senior Secured Notes [Member]                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage   7.50%             7.50%         7.50%
Extinguishment of debt amount   $ 231,000,000                        
Total debt                           $ 1,000,000,000
Repurchase price of individual bonds including premium   1,120           $ 1,042.05            
Face value of individual bonds repurchased   $ 1,000           $ 1,000            
Debt issuance price percentage                           98.278%
7.375% Senior Secured Notes due 2020                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     7.375%     7.375%             7.375%  
Total debt                         $ 500,000,000  
Repurchase price of individual bonds including premium           $ 1,036.88                
Face value of individual bonds repurchased           $ 1,000                
5.125% Senior Secured Notes due 2022                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     5.125%                 5.125%    
Total debt                       $ 500,000,000    
4.375% Senior Secured Notes due 2023, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage   4.375% 4.375%                      
Total debt   $ 750,000,000                        
Debt issuance price percentage   99.968%                        
4.85% Senior Secured Notes due 2024, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     4.85%             4.85%        
Total debt                   $ 600,000,000        
Debt issuance price percentage                   99.927%        
4.45% Senior Secured Notes due 2025, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     4.45%           4.45%          
Total debt                 $ 600,000,000          
Debt issuance price percentage                 99.86%          
5.45% Senior Secured Notes due 2034, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage     5.45%           5.45%          
Total debt                 $ 400,000,000          
Debt issuance price percentage                 99.784%          
5.95% Senior Secured Notes due 2043, net of original issue discount                            
Debt Instrument [Line Items]                            
Debt instrument interest rate stated percentage   5.95% 5.95%                      
Total debt   $ 300,000,000                        
Debt issuance price percentage   99.973%