Acquisitions and divestitures - Narrative (Details) - USD ($) $ in Millions			1 Months Ended	6 Months Ended
	Nov. 11, 2025	Sep. 18, 2025	Nov. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Total purchase price				$ 1,013	$ 0
Amortization				288	278
Proceeds from sale of businesses				1	622
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Composites And Fuel Containment Business | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses			$ 555
Pre-tax gain related to divestiture					238
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Non-Core Filtration Business | Diversified Industrial
Business Combination [Line Items]
Proceeds from sale of businesses			$ 66
Pre-tax gain related to divestiture					$ 11
Filtration Group Corporation
Business Combination [Line Items]
Aggregate cash purchase price, pending acquisition	$ 9,250
Curtis Instruments, Inc
Business Combination [Line Items]
Total purchase price		$ 1,000
Intangible assets		551
Net sales				85
Acquisition-related transaction costs				28
Amortization				$ 8
Curtis Instruments, Inc | Customer relationships
Business Combination [Line Items]
Intangible assets		$ 275
Weighted average useful life of intangible assets (in years)		18 years
Curtis Instruments, Inc | Patents and technology
Business Combination [Line Items]
Intangible assets		$ 220
Weighted average useful life of intangible assets (in years)		10 years
Curtis Instruments, Inc | Trade names
Business Combination [Line Items]
Intangible assets		$ 56
Weighted average useful life of intangible assets (in years)		13 years