Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended			12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2024
Income Taxes
Effective Income Tax Rate Reconciliation, Percent	21.40%	27.90%	22.20%		23.40%
Income Tax Expense (Benefit)	$ 110	$ 143	$ 234		$ 110
Unrecognized tax benefits	924		924	$ 981		$ 981
Unrecognized tax benefits that would impact effective tax rate	860		860	882		882
Unrecognized tax benefits, interest and penalties accrued	74		74	65		65
Global Medical Products and Distribution
Income Taxes
Income Tax Expense (Benefit)				$ 66		$ (45)
Minimum
Income Taxes
Estimated range of decrease in unrecognized tax benefits within the next 12 months	0		0
Maximum
Income Taxes
Estimated range of decrease in unrecognized tax benefits within the next 12 months	$ 20		$ 20