Intangible Assets - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions  | 
Mar. 31, 2022  | 
Dec. 31, 2021  | 
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 655 | $ 653 | 
| Accumulated Amortization | (96) | (80) | 
| Net carrying amount | 559 | 573 | 
| Customer relationships | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 515 | 515 | 
| Accumulated Amortization | (59) | (49) | 
| Net carrying amount | 456 | 466 | 
| Other amortizable intangibles | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 140 | 138 | 
| Accumulated Amortization | (37) | (31) | 
| Net carrying amount | $ 103 | $ 107 | 
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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/disclosureRef 
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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/disclosureRef 
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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. No definition available. 
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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/2003/role/disclosureRef 
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- Details 
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- Details 
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