Long-term Financing and Sales of Receivables (Proceeds Received From Non-Recourse Sales Of Accounts Receivable And Long-Term Receivables) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
Receivables [Abstract] | |||
Accounts receivable sales proceeds | $ 51 | $ 29 | $ 50 |
Long-term receivables sales proceeds | 289 | 196 | 124 |
Total proceeds from receivable sales | $ 340 | $ 225 | $ 174 |