Restructuring and Other (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Jun. 30, 2024	Jun. 30, 2022	Dec. 31, 2022
Restructuring and Related Activities [Abstract]
Severance costs	$ 583
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]			Restructuring and other
Impairment losses			$ 204
Gain loss on investments			$ 64
Employee termination expenses		$ 36

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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Amount of realized and unrealized gain (loss) on investment.

+ References

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
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Indicates line item in statement of income or comprehensive income that includes impairment of indefinite-lived intangible asset excluding goodwill.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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No definition available.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

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