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Goodwill & Other Intangible Assets Finite-Lived Intangible Assets (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($)
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Cost Incurred to Renew or Extend | $ 46
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension | 10 years

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- Definition Weighted average period before the next renewal or extension (both explicit and implicit) for intangible assets that have been renewed or extended, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + 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 of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References No definition available. + Details
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