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Wireless Licenses, Goodwill and Other Intangible Assets - Carrying Amount of Wireless Licenses (Detail) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Goodwill and Intangible Assets Disclosure [Abstract] |  |
Wireless licenses | $ 156,111 | $ 155,667

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire rights under a license arrangement (for example, to sell specified products in a specified territory) having an indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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