Condensed Consolidated Statements of Stockholders’ Equity (Parenthetical) - $ / shares shares in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Treasury stock acquired (less than) (in shares)	0.1	0.0	0.1	0.1
Treasury stock reissued (in shares)	0.4	0.2	0.6	0.6
Common stock dividends (in dollars per share)	$ 0.64	$ 0.575	$ 1.28	$ 1.15