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Acquisition (Narrative) (Details) - Liberty Transaction [Member] - USD ($) $ in Millions | 6 Months Ended | 11 Months Ended
--- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019
Business Acquisition [Line Items] |  |
Acquisition agreement date | May 01, 2018 |
Capital stock acquired, percent | 100.00% |
Provisional assets |  | $ (5)
Provisional liabilities |  | 23
Provisional goodwill |  | $ 28

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- Definition Date when the business acquisition agreement was executed, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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