| Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | 
|---|---|---|
| Deferred tax assets: | ||
| Net operating loss carryforwards and tax credits | $ 681 | $ 745 | 
| Deferred revenue | 52 | 62 | 
| Accrued bonus | 35 | 29 | 
| Expensed costs capitalized for tax | 9 | 11 | 
| Investments | 20 | 21 | 
| Stock based compensation | 57 | 74 | 
| Operating lease liability | 104 | 118 | 
| Other | 12 | 0 | 
| Total deferred tax assets | 970 | 1,060 | 
| Deferred tax liabilities: | ||
| Depreciation of property and equipment | (286) | (237) | 
| FCC license | (522) | (521) | 
| Other intangible assets | (263) | (292) | 
| Right of use asset | (89) | (106) | 
| Other | (5) | (5) | 
| Total deferred tax liabilities | (1,165) | (1,161) | 
| Net deferred tax assets before valuation allowance | (195) | (101) | 
| Valuation allowance | (83) | (54) | 
| Total net deferred tax (liability) asset | $ (278) | $ (155) | 
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- Definition Deferred Tax Asset, Operating Lease Liability No definition available. 
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- Definition Amount before allocation of valuation allowance of deferred tax assets attributable to expensed costs capitalized for tax. No definition available. 
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- Definition Deferred Tax Assets, Operating Loss Carryforwards and Tax Credit Carryforwards No definition available. 
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- Definition Amount of deferred tax liabilities attributable to taxable temporary differences from other intangible assets other than our FCC licenses. No definition available. 
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- Definition Deferred Tax Liabilities, Right Of Use Asset No definition available. 
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- Definition Net deferred tax assets before valuation allowance. No definition available. 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from equity method investments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- References No definition available. 
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee bonuses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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