Accounts Receivable - Additional Information (Details) - USD ($) |
9 Months Ended | |
|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2015 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Maximum undivided ownership interest pooled accounts receivable amount sold | $ 950,000,000 | |
| Short-term debt outstanding | 656,000,000 | $ 614,000,000 |
| Securitization Facility | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Securitized accounts receivable facility | $ 950,000,000 |