Reconciliation of Total Reportable Segments Operating Income to Consolidated Income before Provision for Income Taxes (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
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| Segment Reporting Information [Line Items] | ||
| Severance, pension and benefit charges (Note 8) | $ (165) | |
| Gain on spectrum license transaction (Note 2) | $ 126 | 142 |
| Operating income | 7,181 | 7,942 |
| Equity in losses of unconsolidated businesses | (21) | (20) |
| Other income and (expense), net | (846) | 32 |
| Interest expense | (1,132) | (1,188) |
| Income Before Provision For Income Taxes | 5,182 | 6,766 |
| Operating Segments | ||
| Segment Reporting Information [Line Items] | ||
| Operating income | 7,369 | 7,813 |
| Corporate and Other | ||
| Segment Reporting Information [Line Items] | ||
| Operating income | $ (314) | (509) |
| Operating Income Generated By Assets Sold | ||
| Segment Reporting Information [Line Items] | ||
| Operating income | $ 661 | |
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- Definition Amount of gain (loss) on sale or disposal of intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 of severance, pension and benefit credits or charges incurred in the period. No definition available.
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