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Revenues, Remaining Performance Obligations (Details) - Midstream Services [Member] $ in Millions | Sep. 30, 2019 USD ($)
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Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 22,943.5
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 945.0
Expected timing of satisfaction, period | 3 months
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 3,505.7
Expected timing of satisfaction, period | 1 year
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 3,075.3
Expected timing of satisfaction, period | 1 year
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 2,636.9
Expected timing of satisfaction, period | 1 year
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 2,203.9
Expected timing of satisfaction, period | 1 year
Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 |
Remaining Performance Obligation to be Recognized in the Future [Abstract] |
Remaining performance obligation | $ 10,576.7
Expected timing of satisfaction, period |

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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045 + Details
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