v3.19.2

Revenues Revenue Recognition, Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Amount | $ 3,800 |  |  | $ 3,800 |  |
Contract with Customer, Liability, Revenue Recognized | 7 | $ 6 |  | 18 | $ 20 |
Revenue from Contract with Customer, Including Assessed Tax | 469 | 478 | [1] | 963 | 937 | [1]
Operating Leases, Income Statement, Lease Revenue | $ 132 | $ 91 | [1] | $ 268 | $ 178 | [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 5 years |  |  | 5 years |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Percent | 85.00% |  |  | 85.00% |  |
Minimum |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 1 year |  |  | 1 year |  |
Maximum |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 15 years |  |  | 15 years |  |
[1] | Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.

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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045 + Details
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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707 + Details
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 + Details
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