v3.26.3
Wireless Licenses, Goodwill and Other Intangible Assets - Estimated Future Amortization Expense (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Intangible Asset, Finite-Lived [Line Items]        
Remainder of 2026 $ 844   $ 844  
2027 3,013   3,013  
2028 2,442   2,442  
2029 1,599   1,599  
2030 1,335   1,335  
2031 975   975  
Other        
Intangible Asset, Finite-Lived [Line Items]        
Amortization expense for other intangible assets $ 902 $ 749 $ 2,615 $ 2,237