v3.24.4
Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Other Intangible Assets and Estimated Aggregate Future Amortization Expense (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Gross Amount $ 7,633 $ 6,900
Accumulated Amortization (5,121) (4,282)
Net Amount 2,512 2,618
Estimated Future Amortization    
2025 749  
2026 571  
2027 404  
2028 253  
2029 171  
Thereafter 364  
Net Amount 2,512 2,618
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Amount 5,427 4,883
Accumulated Amortization (4,123) (3,451)
Net Amount 1,304 1,432
Estimated Future Amortization    
Net Amount $ 1,304 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 (323) (231)
Net Amount 447 539
Estimated Future Amortization    
Net Amount $ 447 539
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 $ 338 208
Accumulated Amortization (157) (134)
Net Amount 181 74
Estimated Future Amortization    
Net Amount $ 181 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 $ 620 686
Accumulated Amortization (169) (148)
Net Amount 451 538
Estimated Future Amortization    
Net Amount $ 451 538
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 (349) (318)
Net Amount 129 35
Estimated Future Amortization    
Net Amount $ 129 $ 35
Other | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, useful life 10 years