Income Taxes (Components of Net Deferred Tax Liability) (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Deferred Tax Assets: | ||
| Net operating loss carryforwards | $ 1,926 | $ 481 |
| Nondeductible accruals and other | 2,656 | 2,092 |
| Less: Valuation allowance | 632 | 377 |
| Total deferred tax assets, net of valuation allowance | 3,950 | 2,196 |
| Deferred Tax Liabilities: | ||
| Differences between book and tax basis of property and equipment and intangible assets | 29,139 | 25,223 |
| Differences between book and tax basis of investments | 491 | 466 |
| Differences between book and tax basis of long-term debt | 604 | 673 |
| Differences between book and tax basis of foreign subsidiaries and undistributed foreign earnings | 85 | 39 |
| Total deferred tax liabilities | 30,319 | 26,401 |
| Net deferred tax liability | $ 26,369 | $ 24,205 |
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- Definition Amount before allocation of valuation allowances of deferred tax liability attributable to deductible temporary differences from long-term debt. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax liability attributable to deductible temporary differences from property and equipment and intangible assets. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from investments. 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 after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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 undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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