v3.25.4

Revenue recognition - Schedule of Revenues by Market Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 5,174	$ 4,743	$ 10,258	$ 9,647
Aerospace Systems
Disaggregation of Revenue [Line Items]
Net sales	1,706	1,490	3,347	2,938
Commercial original equipment manufacturer ("OEM") | Aerospace Systems
Disaggregation of Revenue [Line Items]
Net sales	561	447	1,100	881
Commercial aftermarket | Aerospace Systems
Disaggregation of Revenue [Line Items]
Net sales	619	531	1,213	1,052
Defense OEM | Aerospace Systems
Disaggregation of Revenue [Line Items]
Net sales	305	285	599	547
Defense aftermarket | Aerospace Systems
Disaggregation of Revenue [Line Items]
Net sales	$ 221	$ 227	$ 435	$ 458

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