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Other Noncurrent Liabilities and Deferred Credits (Tables) | 12 Months Ended
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Dec. 31, 2018
Payables and Accruals [Abstract] |
Schedule of Other Noncurrent Liabilities and Deferred Credits | Other Noncurrent Liabilities and Deferred Credits
December 31, | 2018 |  | 2017
Environmental remediation (U) | $ | 185 |  |  | $ | 253 |
Income taxes (H) | 146 |  |  | 162 |
Accrued compensation and retirement costs | 195 |  |  | 218 |
Sale-leaseback financing obligation | 119 |  |  | — |
Other | 94 |  |  | 126 |
| $ | 739 |  |  | $ | 759 |

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