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Intangible Assets and Goodwill - Amortized Intangible Assets, Excluding Goodwill, by Business Segment (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,953 | $ 2,829
Accumulated Amortization | 1,704 | 1,574
Products and Systems Integration |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,017 | 985
Accumulated Amortization | 409 | 337
Software and Services |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,936 | 1,844
Accumulated Amortization | $ 1,295 | $ 1,237

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