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v3.25.1

Guarantees (Narrative) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Commercial Aerospace |  |
Guarantor Obligations [Line Items] |  |
Collaboration partners' share of financing guarantees | $ 129 | $ 131
Other Guarantees |  |
Guarantor Obligations [Line Items] |  |
Carrying amount of guarantee obligations | $ 100 | $ 101

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