| Intangible Assets - Intangible Assets Subject to Amortization, net (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | 
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 685 | $ 680 | 
| Accumulated Amortization | (284) | (269) | 
| Net carrying amount | 401 | 411 | 
| Customer relationships | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 515 | 515 | 
| Accumulated Amortization | (184) | (173) | 
| Net carrying amount | 331 | 342 | 
| Other amortizable intangible assets | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 170 | 165 | 
| Accumulated Amortization | (100) | (96) | 
| Net carrying amount | $ 70 | $ 69 | 
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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