Revenue (Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Condensed Consolidated Balance Sheet [Line Items] | ||
| Receivables, gross | $ 11,711 | $ 11,456 |
| Less: Allowance for doubtful accounts | 419 | 352 |
| Receivables, net | 11,292 | 11,104 |
| Noncurrent receivables (included in other noncurrent assets, net) | 1,337 | 1,399 |
| Contract acquisition and fulfillment costs (included in other noncurrent assets, net) | 1,083 | 991 |
| Noncurrent deferred revenue (included in other noncurrent liabilities) | 618 | 650 |
| NBCUniversal Media LLC [Member] | ||
| Condensed Consolidated Balance Sheet [Line Items] | ||
| Receivables, gross | 7,336 | 7,392 |
| Less: Allowance for doubtful accounts | 100 | 99 |
| Receivables, net | 7,236 | 7,293 |
| Noncurrent receivables (included in other noncurrent assets, net) | 1,146 | 1,180 |
| Noncurrent deferred revenue (included in other noncurrent liabilities) | $ 394 | $ 481 |
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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. No definition available.
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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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