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Other Income and Expense (Tables) | 6 Months Ended
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Jun. 30, 2018
Other Income and Expenses [Abstract] |
Schedule of other Income and other expense [Table Text Block] | Other income generally includes gains on asset sales and liability extinguishments, favorable judgments on contingencies, gains on contract terminations, allowance for funds used during construction and other income from miscellaneous transactions. Other expense generally includes losses on asset sales and dispositions, losses on legal contingencies, defined benefit plan non-service costs, and losses from other miscellaneous transactions. The components are summarized as follows (in millions):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Other Income | Legal settlements (1) | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 60 |
| Allowance for funds used during construction (US Utilities) | 2 |  |  | 6 |  |  | 7 |  |  | 13 |
| Other | 5 |  |  | 8 |  |  | 13 |  |  | 14 |
| Total other income | $ | 7 |  |  | $ | 14 |  |  | $ | 20 |  |  | $ | 87 |
Other Expense | Loss on sale and disposal of assets | $ | 3 |  |  | $ | — |  |  | $ | 5 |  |  | $ | 21 |
| Water rights write-off | — |  |  | 3 |  |  | — |  |  | 3 |
| Other (2) | 1 |  |  | 4 |  |  | 8 |  |  | 7 |
| Total other expense | $ | 4 |  |  | $ | 7 |  |  | $ | 13 |  |  | $ | 31 |
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(1) | In December 2016, the Company and YPF entered into a settlement agreement in which all parties agreed to give up any and all legal action related to gas supply contracts that were terminated in 2008 and have been in dispute since 2009. In January 2017, the YPF board approved the agreement and paid the Company $60 million, thereby resolving all uncertainties around the dispute.
(2) | As of January 1, 2018, the Company retrospectively adopted ASU 2017-07, Compensation —Retirement Benefits. As such, $2 million of gains primarily related to the expected return on plan assets for the three months ended June 30, 2017 and $1 million of non-service costs associated with defined benefit plans for the six months ended June 30, 2017 were reclassified from Cost of Sales to Other Expense.

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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