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Goodwill and Intangible Assets, Net - Schedule of Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Intangible assets:    
Intangible assets, acquired cost $ 93 $ 91
Less: accumulated amortization (58) (57)
Intangible assets, net 35 34
Goodwill 3 0
Customer relationships    
Intangible assets:    
Intangible assets, acquired cost 50 50
Developed technology    
Intangible assets:    
Intangible assets, acquired cost 31 41
Franchise rights    
Intangible assets:    
Intangible assets, acquired cost $ 12 $ 0