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Income Taxes - Components of the net operating loss carryforwards (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | $ 239
20-Year Carryforward Expires in 2025-2036 |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 149
Indefinite Carryforward Period |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 90
US Federal |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 209
US Federal | 20-Year Carryforward Expires in 2025-2036 |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 149
US Federal | Indefinite Carryforward Period |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 60
Foreign |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 30
Foreign | 20-Year Carryforward Expires in 2025-2036 |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | 0
Foreign | Indefinite Carryforward Period |
Operating Loss Carryforwards [Line Items] |
Components of the net operating loss carryforwards as of December 31, 2018 | $ 30

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + 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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