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Income Taxes - Operating Loss Carryforwards (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Operating Loss Carryforwards |
Recognized valuation allowance relating to NOL carryforwards | $ 2,600.0
U.S. Federal |
Operating Loss Carryforwards |
Net operating loss carryforwards | 418.3
U.S. Federal | Between 2030 and 2036 |
Operating Loss Carryforwards |
Net operating loss carryforwards | 3,700.0
State and Local Jurisdiction [Member] |
Operating Loss Carryforwards |
Net operating loss carryforwards | 1,100.0
Foreign |
Operating Loss Carryforwards |
Net operating loss carryforwards | $ 10,900.0

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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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