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Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets by Asset Class (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2023
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,657 | $ 2,220
Accumulated Amortization and Impairment | 2,210 | 1,968
Total | 447 | 252
Held-for-sale |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross intangibles held for sale |  | 143
Customer-related and contract-based |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2,207 | 1,851
Accumulated Amortization and Impairment | 1,833 | 1,653
Total | 374 | 198
Technology and other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 450 | 369
Accumulated Amortization and Impairment | 377 | 315
Total | 73 | $ 54
Tradenames |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortized intangible assets | $ 14 |

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