Acquisitions and divestitures - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Sep. 18, 2025	Sep. 30, 2025	Sep. 30, 2024
Business Combination [Line Items]
Total purchase price		$ 1,013	$ 0
Curtis Instruments, Inc
Business Combination [Line Items]
Total purchase price	$ 1,000
Intangible assets	551
Net sales		11
Acquisition-related transaction costs		$ 13
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