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Wireless Licenses, Goodwill and Other Intangible Assets - Additional Information (Detail) - Wireless Licenses - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Indefinite-lived Intangible Assets [Line Items] |  |
Wireless licenses under development | $ 38,900 | $ 53,200
Interest costs capitalized | $ 449 | $ 452
Average remaining renewal period of wireless license portfolio (in years) | 15 years |

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