Basis of Presentation and Summary of Significant Accounting Policies (Narrative, Sales Returns and Allowances) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Accounting Policies [Abstract]
Accrual for estimated sales returns and allowances	$ 441	$ 474
Returns and allowances	$ 2,200	$ 2,200	$ 2,400