Basis of Presentation and Summary of Significant Accounting Policies (Narrative, Vendor Reserves) (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024
Accounting Policies [Abstract]
Vendor reserves	$ 96	$ 112

Total of reserves, relating to vendor disputes or deductions, that are netted against vendor liabilities in the ordinary course of business.

No definition available.