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v3.19.3.a.u2

Goodwill and Intangible Assets (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2019 segment division
NBCUniversal Media LLC [Member] |
Segment Reporting Information [Line Items] |
Number of reportable segments | 4
Software [Member] |
Segment Reporting Information [Line Items] |
Finite-lived intangible asset amortization period | 5 years
Software [Member] | NBCUniversal Media LLC [Member] |
Segment Reporting Information [Line Items] |
Finite-lived intangible asset amortization period | 5 years
Maximum [Member] | Software [Member] |
Segment Reporting Information [Line Items] |
Finite-lived intangible asset amortization period | 5 years
Maximum [Member] | Software [Member] | NBCUniversal Media LLC [Member] |
Segment Reporting Information [Line Items] |
Finite-lived intangible asset amortization period | 5 years
Cable Communications [Member] |
Segment Reporting Information [Line Items] |
Number of reportable segments | 1
Cable Communications [Member] | Operating Segments [Member] |
Segment Reporting Information [Line Items] |
Number of divisions | division | 3

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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