Long-Term Debt 2013 Term Loan Facility (Details) - USD ($) $ in Millions |
Jul. 30, 2016 |
Apr. 30, 2016 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Debt Instrument, Repurchased Face Amount | $ 60 | |
| 2013 Term Loan Facility [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt Instrument, Repurchased Face Amount | $ 2,250 |