v3.2.0.727
Debt Debt Outstanding (Details) - USD ($)
$ in Millions
6 Months Ended
Mar. 10, 2015
Mar. 03, 2014
Jun. 30, 2015
Dec. 31, 2014
Feb. 14, 2013
May. 17, 2011
Debt Instrument [Line Items]            
Capital leases and other     $ 60 $ 53    
Total debt     2,736 2,451    
Less: current portion     (43) (34)    
Long-term debt     2,693 2,417    
Notes Payable, Other Payables | Senior Notes, 4.150% Due 2024 & Senior Notes, 1.500% Due 2025            
Debt Instrument [Line Items]            
Unamortized Discount     $ 6      
Notes Payable, Other Payables | Senior Notes, 5.875% Due 2019            
Debt Instrument [Line Items]            
Debt Instrument, Interest Rate, Stated Percentage           5.875%
Debt Instrument, Maturity Date     May 15, 2019      
Notes Payable, Other Payables | Senior Notes, 6.125% Due 2021            
Debt Instrument [Line Items]            
Senior Notes     $ 0 500    
Debt Instrument, Interest Rate, Stated Percentage     6.125%     6.125%
Debt Instrument, Maturity Date     May 15, 2021      
Notes Payable, Other Payables | Senior Notes, 5.000% Due 2023            
Debt Instrument [Line Items]            
Senior Notes     $ 800 800    
Debt Instrument, Interest Rate, Stated Percentage     5.00%   5.00%  
Debt Instrument, Maturity Date     Feb. 15, 2023      
Notes Payable, Other Payables | Senior Notes, 4.150% Due 2024            
Debt Instrument [Line Items]            
Unamortized Discount       2    
Senior Notes     $ 698 698    
Debt Instrument, Interest Rate, Stated Percentage   4.15% 4.15%      
Debt Instrument, Maturity Date   Mar. 15, 2024 Mar. 15, 2024      
Notes Payable, Other Payables | Euro-Denominated Senior Notes, 1.500% Due 2025            
Debt Instrument [Line Items]            
Senior Notes     $ 778 0    
Debt Instrument, Interest Rate, Stated Percentage 1.50%   1.50%      
Debt Instrument, Maturity Date Mar. 10, 2025   Mar. 10, 2025      
Loans Payable | Tranche A, Due 2018            
Debt Instrument [Line Items]            
Tranche A Term Loan, due 2018     $ 400 $ 400