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Income Taxes Income Taxes (Components of Foreign Income Tax Provision) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | $ (66) | $ (76) | $ (30)
United Kingdom |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | (19) | (32) | (7)
Australia |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | (6) | (8) | 6
Canada |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | (1) | (6) | 0
Middle East |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | (20) | (16) | (10)
Africa |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | (1) | (1) | 1
Other |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign provision for income taxes | $ (19) | $ (13) | $ (20)

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- Definition Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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