Segment Information (Assets by Reportable Segment) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024
Segment Reporting Information [Line Items]
Total assets	$ 43,059	$ 45,121
Operating Segments | Pharmaceutical and Specialty Solutions
Segment Reporting Information [Line Items]
Total assets	29,215	29,149
Operating Segments | GMPD
Segment Reporting Information [Line Items]
Total assets	7,148	7,047
Operating Segments | Other Operating Segment
Segment Reporting Information [Line Items]
Total assets	2,611	2,606
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 4,085	$ 6,319