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Taxes - Schedule of Deferred Taxes (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred Tax Assets |  |
Employee benefits | $ 3,913 | $ 3,888
Tax loss, credit, and other carry forwards | 1,922 | 1,940
Lease liabilities | 5,480 | 5,395
Other - assets | 1,708 | 1,591
Deferred tax assets, gross | 13,023 | 12,814
Valuation allowances | (1,341) | (1,347)
Deferred tax assets | 11,682 | 11,467
Deferred Tax Liabilities |  |
Spectrum and other intangible amortization | 28,535 | 25,851
Depreciation | 20,884 | 21,388
Lease right-of-use assets | 5,200 | 5,007
Other - liabilities | 2,696 | 2,489
Deferred tax liabilities | 57,315 | 54,735
Net deferred tax liability | $ 45,633 | $ 43,268

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