Income Taxes (Significant Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Deferred tax assets: | ||
| Stock-based compensation expense | $ 421 | $ 291 |
| Accrued employee benefits | 463 | 387 |
| Accruals and reserves not currently deductible | 1,047 | 902 |
| Tax credits | 3,264 | 1,979 |
| Basis difference in investment in Arris | 0 | 657 |
| Prepaid cost sharing | 0 | 597 |
| Net operating losses | 771 | 557 |
| Operating leases | 1,876 | 160 |
| Other | 390 | 21 |
| Total deferred tax assets | 8,232 | 5,551 |
| Valuation allowance | (3,502) | (2,817) |
| Total deferred tax assets net of valuation allowance | 4,730 | 2,734 |
| Deferred tax liabilities: | ||
| Property and equipment, net | (1,798) | (1,382) |
| Renewable energy investments | (466) | (500) |
| Foreign Earnings | (373) | (111) |
| Net investment gains | (1,074) | (1,143) |
| Operating leases | (1,619) | |
| Other | (380) | (125) |
| Total deferred tax liabilities | (5,710) | (3,261) |
| Deferred tax liabilities, net | $ (980) | $ (527) |
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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from basis difference in investment in Home business. No definition available.
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- Definition Deferred Tax Assets, Deferred Cost Sharing No definition available.
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- Definition Deferred Tax Assets, Operating Lease, Right-of-Use Asset No definition available.
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- Definition Deferred Tax Liabilities, Operating Lease, Liability No definition available.
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- Definition Deferred Tax Liabilities, Renewable Energy 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 before 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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- 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, classified as other. 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 tax credit carryforwards, classified as other. 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 employee benefits, classified as other. 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 share-based compensation. 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 investments (excludes investments in subsidiaries and equity method investments). No definition available.
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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