Segment Information (Assets by Reportable Segment) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total assets	$ 43,387	$ 43,878
Operating Segments | Pharmaceutical
Segment Reporting Information [Line Items]
Total assets	27,253	26,409
Operating Segments | Medical
Segment Reporting Information [Line Items]
Total assets	11,338	11,632
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 4,796	$ 5,837