Debt - Trade Receivables Securitization Facility (Details) - Trade receivables securitization facility due July 2019 $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
USD ($)
| |
| Debt Instrument [Line Items] | |
| Borrowings | $ 0 |
| Repayments | 0 |
| Long-term debt, gross | $ 0 |