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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2016
Accounting Policies and Basis of Presentation |
Schedule of changes in the asset retirement obligation |
|  | Years ended December 31, |
(Millions of dollars) |  | 2016 |  | 2015 |
Beginning balance |  | $ | 18 |  | $ | 17 |
Accretion expense |  |  | 1 |  |  | 1 |
Ending balance |  | $ | 19 |  | $ | 18 |
Schedule of amounts paid for interest and income taxes |
|  | Years ended December 31, |
(Millions of dollars) |  | 2016 |  | 2015 |  | 2014 |
Interest, net of interest capitalized |  | $ | 29 |  | $ | 17 |  | $ | 20 |
Income taxes, net of refunds |  |  | 31 |  |  | 60 |  |  | 135 |
Schedule of non-cash transactions resulting from the deconsolidation |
(Millions of dollars) |  |
Decrease in net working capital |  | $ | 21 |
Increase in investment in and advances to affiliates |  |  | (74) |
Decrease in property, plant and equipment |  |  | 16 |
Decrease in goodwill |  |  | 28 |
Decrease in other intangible assets, net (not subject to amortization) |  |  | 17 |
Gain on sale of controlling interest in subsidiary |  |  | 66 |
Net proceeds from sale of controlling interest in subsidiary |  | $ | 74 |

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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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- Definition Tabular disclosure of the sale of an asset or business through a noncash (or part noncash) transaction. It may include the nature and purpose of the divesture, as well as the asset divested of and the noncash consideration received (that is, debt, stock, and so forth.) Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 + Details
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