v3.25.2
Segment Information (Summary Of Operating Revenues And Expenses) (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]        
Revenues $ 30,847 $ 29,797 $ 61,473 $ 59,825
Operations and Support Expenses 19,095 18,965 38,777 38,099
Depreciation and Amortization 5,251 5,072 10,441 10,119
Operating Income (Loss) 6,501 5,760 12,255 11,607
Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 30,753 29,685 61,284 59,605
Operations and Support Expenses 18,452 17,726 36,826 35,991
Depreciation and Amortization 5,190 4,948 10,313 9,855
Operating Income (Loss) 7,111 7,011 14,145 13,759
DTV-related retained costs        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Operations and Support Expenses 57 116 113 250
Depreciation and Amortization 50 102 100 222
Operating Income (Loss) (107) (218) (213) (472)
Parent Administration Support        
Segment Reporting Information [Line Items]        
Revenues (2) 0 (1) 0
Operations and Support Expenses 422 443 861 835
Depreciation and Amortization 2 2 10 3
Operating Income (Loss) (426) (445) (872) (838)
Securitization Fees        
Segment Reporting Information [Line Items]        
Revenues 30 29 58 55
Operations and Support Expenses 174 150 388 315
Depreciation and Amortization 0 0 0 0
Operating Income (Loss) (144) (121) (330) (260)
Value Portfolio        
Segment Reporting Information [Line Items]        
Revenues 66 83 132 165
Operations and Support Expenses 11 25 21 51
Depreciation and Amortization 0 5 0 9
Operating Income (Loss) 55 53 111 105
Total Corporate        
Segment Reporting Information [Line Items]        
Revenues 94 112 189 220
Operations and Support Expenses 664 734 1,383 1,451
Depreciation and Amortization 52 109 110 234
Operating Income (Loss) (622) (731) (1,304) (1,465)
Certain significant items        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Operations and Support Expenses (21) 505 568 657
Depreciation and Amortization 9 15 18 30
Operating Income (Loss) 12 (520) (586) (687)
Communications | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 29,699 28,582 59,259 57,439
Operations and Support Expenses 17,599 16,801 35,195 34,183
Depreciation and Amortization 5,035 4,776 10,008 9,506
Operating Income (Loss) 7,065 7,005 14,056 13,750
Communications | Mobility | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 21,845 20,480 43,415 41,074
Operations and Support Expenses 12,358 11,285 24,662 22,924
Depreciation and Amortization 2,556 2,476 5,082 4,963
Operating Income (Loss) 6,931 6,719 13,671 13,187
Communications | Business Wireline | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 4,313 4,755 8,781 9,668
Operations and Support Expenses 2,993 3,267 6,061 6,754
Depreciation and Amortization 1,521 1,386 3,019 2,748
Operating Income (Loss) (201) 102 (299) 166
Communications | Consumer Wireline | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 3,541 3,347 7,063 6,697
Operations and Support Expenses 2,248 2,249 4,472 4,505
Depreciation and Amortization 958 914 1,907 1,795
Operating Income (Loss) 335 184 684 397
Latin America | Operating Segments        
Segment Reporting Information [Line Items]        
Revenues 1,054 1,103 2,025 2,166
Operations and Support Expenses 853 925 1,631 1,808
Depreciation and Amortization 155 172 305 349
Operating Income (Loss) 46 6 89 9
Total Corporate and Other        
Segment Reporting Information [Line Items]        
Revenues 94 112 189 220
Operations and Support Expenses 643 1,239 1,951 2,108
Depreciation and Amortization 61 124 128 264
Operating Income (Loss) $ (610) $ (1,251) $ (1,890) $ (2,152)