v3.25.4
Segment Reporting (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Segment Reporting [Abstract]      
Number of operating segments | segment 1    
Number of reportable segments | segment 1    
Segment Reporting Information [Line Items]      
Total revenues $ 88,309 $ 81,400 $ 78,558
Less: Significant and other segment expenses      
Advertising expense 3,700 3,100 2,500
Bad debt expense 1,370 1,192 898
Impairment expense 278 0 0
Gain on disposal group held for sale 0 0 (25)
Interest expense, net 3,774 3,411 3,335
Other expense (income), net 224 (113) (68)
Income tax expense 3,289 3,373 2,682
Net income 10,992 11,339 8,317
Equipment revenues      
Segment Reporting Information [Line Items]      
Total revenues 15,972 14,263 14,138
Less: Significant and other segment expenses      
Cost of equipment sales 21,277 18,882 18,533
Wireless      
Segment Reporting Information [Line Items]      
Total revenues 88,309 81,400 78,558
Less: Significant and other segment expenses      
Employee expenses 8,553 7,041 7,629
Lease expense 5,197 5,066 5,398
Advertising expense 3,668 3,067 2,515
Bad debt expense 1,370 1,192 898
Other segment items 16,179 15,223 16,526
Impairment expense 278 0 0
Gain on disposal group held for sale 0 0 (25)
Depreciation and amortization 13,508 12,919 12,818
Interest expense, net 3,774 3,411 3,335
Other expense (income), net 224 (113) (68)
Income tax expense 3,289 3,373 2,682
Net income 10,992 11,339 8,317
Wireless | Equipment revenues      
Less: Significant and other segment expenses      
Cost of equipment sales $ 21,277 $ 18,882 $ 18,533