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Contingencies (Federal Government's Lawsuit) (Details) - Federal Governments Lawsuit [Member] - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2006 | Dec. 31, 2019 | Dec. 31, 2014
Loss Contingencies [Line Items] |  |  |
Disclosure period | 10 years |  |
Implementation of Corrective Communications [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Provision related to litigation recorded |  | $ 5 | $ 31

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- Definition Federal Trade Commission, Disclosure Period + 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 Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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- Details
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- Details
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