Segment Information (Segment Profit by Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating earnings	$ 572	$ (97)		$ 590	$ (632)
Contingent Attorney Fee		18			18
Pharmaceutical
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Judgment for lost profits			$ 16
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating earnings	620	546		1,524	1,551
Operating Segments | Pharmaceutical
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating earnings	600	487		1,495	1,319
Operating Segments | Medical
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating earnings	20	59		29	232
Corporate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating earnings	$ (48)	$ (643)		$ (934)	$ (2,183)