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Quantinuum Inc. [Member] Quantinuum Inc. 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Honeywell Aerospace Inc. [Member] Honeywell Aerospace Inc. Shares received (in shares) Recapitalization, Consideration, Equity, Shares Recapitalization, Consideration, Equity, Shares Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Accounts payable and due to related parties Due to related parties Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Other current assets Increase (Decrease) in Other Current Assets Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional paid-in-capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental Balance Sheet Information Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee Total effect of changes in ownership interest on equity attributable to Quantinuum Inc. 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