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Other Property and Equipment - Held for Use and Estimated Useful Lives (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 1,754 | $ 1,810
Total other property and equipment, at cost | 1,754 | 1,810
Less: accumulated depreciation | (799) | (692)
Total other property and equipment, net | 955 | 1,118
Buildings and improvements |  |
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 1,038 | 1,058
Buildings and improvements | Minimum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 10 years |
Buildings and improvements | Maximum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 39 years |
Computer equipment |  |
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 356 | 355
Estimated Useful Life | 5 years |
Sand mine |  |
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 81 | 78
Sand mine | Minimum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 10 years |
Sand mine | Maximum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 30 years |
Compressor |  |
Property, Plant and Equipment [Abstract] |  |
Total other property and equipment, at cost | $ 36 | 48
Assets under finance lease | 27 | 10
Assets under finance lease, accumulated amortization | $ 18 |
Compressor | Minimum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 3 years |
Compressor | Maximum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 20 years |
Land |  |
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 113 | 115
Other |  |
Property, Plant and Equipment [Abstract] |  |
Other property and equipment | $ 130 | $ 156
Other | Minimum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 5 years |
Other | Maximum |  |
Property, Plant and Equipment [Abstract] |  |
Estimated Useful Life | 20 years |

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- Definition Amount of accumulated amortization of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Definition Amount, before accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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