v3.19.2

Revenues (Tables) | 6 Months Ended
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Jun. 30, 2019
Revenue Recognition [Abstract] |
Disaggregation of Revenue | Revenues (in millions)
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 (a) |  | 2019 |  | 2018 (a)
Revenues from contracts with customers | $ | 469 |  |  | $ | 478 |  |  | $ | 963 |  |  | $ | 937 |
Lease revenues | 132 |  |  | 91 |  |  | 268 |  |  | 178 |
(a) | Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.
Contract with Customer, Asset and Liability | Summary of Customer Contract Assets and Liabilities (in millions)
| June 30, 2019 |  | December 31, 2018
Other contract assets | $ | 22 |  |  | $ | 32 |
Deferred income, current | 25 |  |  | 24 |
Deferred income, noncurrent | 68 |  |  | 57 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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