Retirement benefits (Tables)

3 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost (Income)

The components of net periodic benefit cost (income) for our defined benefit pension and other postretirement plans were as follows:

	U.S. Pension Benefits				Non-U.S. Pension Benefits				Other Postretirement Benefits
	Three Months Ended				Three Months Ended				Three Months Ended
	September 30,				September 30,				September 30,
	2025		2024		2025		2024		2025		2024
Service cost	$	6	$	7	$	6	$	6	$	—	$	—
Interest cost	42		46		18		19		1		1
Expected return on plan assets	(58)		(61)		(23)		(22)		—		—
Amortization of prior service cost	1		1		—		—		—		—
Amortization of net actuarial loss (gain)	1		2		2		2		(1)		—
Net periodic benefit cost (income)	$	(8)	$	(5)	$	3	$	5	$	—	$	1