Share Repurchase Transactions and Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Detail) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($)
Equity [Abstract]
Unrealized gains (losses) on available-for-sale securities, beginning balances	$ (30)
Unrealized gains on available-for-sale securities, net of income taxes	5
Unrealized gains (losses) on available-for-sale securities, ending balances	(25)
Foreign currency translation adjustments, beginning balances	(373)
Foreign currency translation adjustments, net of income taxes	15
Foreign currency translation adjustments, ending balances	(358)
Defined benefit plans, beginning balances	(87)
Defined benefit plans, ending balances	(87)
Accumulated other comprehensive loss, net of tax, beginning balances	(490)
Unrealized losses on available-for-sale securities, net of income tax benefit	5
Foreign currency translation adjustments, net of income tax benefit	15
Accumulated other comprehensive loss, net of tax, ending balances	$ (470)

Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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- Definition

Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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