Segment Information (Depreciation and Amortization and Additions to Property and Equipment by Reportable Segment) (Details) $ in Millions	12 Months Ended
	Jun. 30, 2025 USD ($) segment	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 790	$ 710	$ 692
Segment, Expenditure, Addition to Long-Lived Assets	$ 547	511	481
Number of Reportable Segments | segment	2
Operating Segments | Pharmaceutical and Specialty Solutions
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 185	184	194
Segment, Expenditure, Addition to Long-Lived Assets	118	76	56
Operating Segments | GMPD
Segment Reporting Information [Line Items]
Total depreciation and amortization	212	205	173
Segment, Expenditure, Addition to Long-Lived Assets	133	136	191
Operating Segments | Other Operating Segment
Segment Reporting Information [Line Items]
Total depreciation and amortization	88	79	71
Segment, Expenditure, Addition to Long-Lived Assets	88	81	52
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Segment Reporting Information [Line Items]
Total depreciation and amortization	305	242	254
Segment, Expenditure, Addition to Long-Lived Assets	$ 208	$ 218	$ 182