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Other noncurrent liabilities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2017
Change of asset retirement obligations [Abstract] |
Other Noncurrent Liabilities [Table Text Block] |
| March 31, 2017 |  | December 31, 2016
| (in millions)
Accrued straight-line rent | $ | 11 |  |  | $ | 10 |
Reserve for underground storage tank removal | 58 |  |  | 53 |
Reserve for environmental remediation, long-term | 33 |  |  | 35 |
Unfavorable lease liability | 28 |  |  | 30 |
Others | 48 |  |  | 36 |
Total | $ | 178 |  |  | $ | 164 |
Schedule of Change in Asset Retirement Obligation [Table Text Block] |
| March 31, 2017 |  | December 31, 2016
| (in millions)
Accrued straight-line rent | $ | 11 |  |  | $ | 10 |
Reserve for underground storage tank removal | 58 |  |  | 53 |
Reserve for environmental remediation, long-term | 33 |  |  | 35 |
Unfavorable lease liability | 28 |  |  | 30 |
Others | 48 |  |  | 36 |
Total | $ | 178 |  |  | $ | 164 |

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- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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