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Reorganization of Businesses - Net Charges Incurred by Business Segment (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Restructuring Cost and Reserve [Line Items] |  |  |
Reorganization of business charges | $ 38 | $ 53 | $ 36
Products and Systems Integration |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Reorganization of business charges | 32 | 45 | 21
Software and Services |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Reorganization of business charges | $ 6 | $ 8 | $ 15

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