Segments and Geographic Information - Additional Information (Details) |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2020
USD ($)
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Sep. 30, 2020
USD ($)
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Jun. 30, 2020
USD ($)
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Mar. 31, 2020
USD ($)
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Dec. 31, 2019
USD ($)
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Sep. 30, 2019
USD ($)
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Jun. 30, 2019
USD ($)
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Mar. 31, 2019
USD ($)
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Dec. 31, 2020
USD ($)
segment
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Dec. 31, 2019
USD ($)
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Dec. 31, 2018
USD ($)
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| Segment Reporting Information [Line Items] | |||||||||||
| Number of reportable segments | segment | 2 | ||||||||||
| Revenue | $ 2,189,000,000 | $ 2,025,000,000 | $ 1,874,000,000 | $ 1,952,000,000 | $ 2,062,000,000 | $ 2,011,000,000 | $ 1,977,000,000 | $ 1,744,000,000 | $ 8,040,000,000 | $ 7,794,000,000 | $ 5,771,000,000 |
| Advertising revenue | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Revenue | 1,340,000,000 | 1,336,000,000 | $ 188,000,000 | ||||||||
| Maximum | Advertising revenue | Intersegment Eliminations | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Revenue | $ 1,000,000 | $ 1,000,000 | |||||||||
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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