v3.24.3
Goodwill, Spectrum License Transactions and Other Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 7,678 $ 6,900
Accumulated Amortization (4,916) (4,282)
Net Amount 2,762 2,618
Estimated Future Amortization    
2025 797  
2026 618  
2027 448  
2028 292  
2029 199  
Thereafter 408  
Net Amount 2,762 2,618
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 5,428 4,883
Accumulated Amortization (3,952) (3,451)
Net Amount 1,476 1,432
Estimated Future Amortization    
Net Amount $ 1,476 1,432
Customer relationships | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 8 years  
Reacquired rights    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 770 770
Accumulated Amortization (300) (231)
Net Amount 470 539
Estimated Future Amortization    
Net Amount $ 470 539
Reacquired rights | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 9 years  
Tradenames and patents    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 330 208
Accumulated Amortization (151) (134)
Net Amount 179 74
Estimated Future Amortization    
Net Amount $ 179 74
Tradenames and patents | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 19 years  
Favorable spectrum leases    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 672 686
Accumulated Amortization (174) (148)
Net Amount 498 538
Estimated Future Amortization    
Net Amount $ 498 538
Favorable spectrum leases | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 27 years  
Other    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 478 353
Accumulated Amortization (339) (318)
Net Amount 139 35
Estimated Future Amortization    
Net Amount $ 139 $ 35
Other | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 10 years