Statements of Consolidated Stockholders' Equity (Parenthetical) - $ / shares shares in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Statement of Stockholders' Equity [Abstract]
Treasury stock, shares repurchased (in shares)	8.6	4.4	5.1
Dividends (in dollars per share)	$ 6.64	$ 6.02	$ 5.45