v3.25.4
Intangible Asset, Net (Tables)
 12 Months Ended
Dec. 31, 2025
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, 2025December 31, 2024
Estimated Useful
Lives (Years)		CostAccumulated
Amortization		NetCostAccumulated
Amortization		Net
Customer contracts and relationships
1 – 20
$3,034 $(1,295)$1,739 $2,677 $(1,015)$1,662 
Other agreements
15 – 70
29 (14)15 28 (13)15 
Intangible assets (1) (2)
$3,063 $(1,309)$1,754 $2,705 $(1,028)$1,677 
(1)We include rights-of-way, which are intangible assets, within property and equipment. See Note 7 for a discussion of property and equipment.
(2)The increase in intangible assets in 2025 is associated with the assets acquired during the period. See Note 8 for additional information.
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):
2026$301 
2027$261 
2028$215 
2029$192 
2030$165