v3.25.2
Segment Reporting (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Total revenues $ 21,132 $ 19,772 $ 42,018 $ 39,366
Less: Significant and other segment expenses        
Bad debt expense 265 255 588 537
Interest expense, net 922 854 1,838 1,734
Other expense (income), net 11 8 57 (12)
Income tax expense 1,058 843 1,943 1,607
Net income 3,222 2,925 6,175 5,299
Equipment revenues        
Segment Reporting Information [Line Items]        
Total revenues 3,439 3,106 7,143 6,357
Less: Significant and other segment expenses        
Cost of equipment sales 4,659 4,088 9,457 8,487
Wireless        
Segment Reporting Information [Line Items]        
Total revenues 21,132 19,772 42,018 39,366
Less: Significant and other segment expenses        
Employee expenses 1,902 1,725 3,811 3,408
Lease expense 1,258 1,257 2,465 2,525
Advertising expense 864 741 1,676 1,389
Bad debt expense 265 255 588 537
Other segment items 3,825 3,828 7,664 7,773
Depreciation and amortization 3,146 3,248 6,344 6,619
Interest expense, net 922 854 1,838 1,734
Other expense (income), net 11 8 57 (12)
Income tax expense 1,058 843 1,943 1,607
Net income 3,222 2,925 6,175 5,299
Wireless | Equipment revenues        
Less: Significant and other segment expenses        
Cost of equipment sales $ 4,659 $ 4,088 $ 9,457 $ 8,487