v3.4.0.3
Debt (First Lien Term Loans) (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Long-term Debt $ 11,674 $ 11,292
First Lien Term Loan 2019 [Member]    
Debt Instrument [Line Items]    
Long-term Debt 794 795
2020 First Lien Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term Debt 377 378
2022 First Lien Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term Debt 1,568 1,571
2023 First Lien Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term Debt 532 533
First Lien Term Loans [Member]    
Debt Instrument [Line Items]    
Long-term Debt $ 3,271 $ 3,277