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Intangible Asset, Net (Tables)
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Components of Intangible Assets, Net of Accumulated Amortization
Intangible assets, net of accumulated amortization, consisted of the following (in millions):

December 31, 2024December 31, 2023
Estimated Useful
Lives (Years)		CostAccumulated
Amortization		NetCostAccumulated
Amortization		Net
Customer contracts and relationships
1 – 29
$2,767 $(1,105)$1,662 $2,789 $(932)$1,857 
Other agreements
15 – 70
28 (13)15 30 (12)18 
Intangible assets (1)
$2,795 $(1,118)$1,677 $2,819 $(944)$1,875 
(1)We include rights-of-way, which are intangible assets, within property and equipment. See Note 6 for a discussion of property and equipment.
Schedule of Estimated Amortization Expense Related to Finite-lived Intangible Assets for the next Five Years We estimate that our amortization expense related to finite-lived intangible assets for the next five years will be as follows (in millions):
2025$255 
2026$218 
2027$194 
2028$172 
2029$154