Financing Receivables (Details) - USD ($) $ in Millions |
Jun. 30, 2018 |
Jan. 01, 2018 |
Dec. 31, 2017 |
---|---|---|---|
Financing Receivable Recorded Investment [Line Items] | |||
Financing receivable | $ 155 | $ 194 | |
Argentina [Member] | |||
Financing Receivable Recorded Investment [Line Items] | |||
Financing receivable | 119 | 177 | |
Other Entity [Member] | |||
Financing Receivable Recorded Investment [Line Items] | |||
Financing receivable | 9 | 17 | |
PANAMA | |||
Financing Receivable Recorded Investment [Line Items] | |||
Financing receivable | $ 27 | $ 0 | |
Fluence [Member] | |||
Financing Receivable Recorded Investment [Line Items] | |||
Business Acquisition, Percentage of Voting Interests Acquired | 50.00% |