Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025
Statement of Financial Position [Abstract]
Property, plant and equipment, accumulated depreciation and amortization	$ 2,955	$ 2,911
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	130,741,461	130,741,461
Common stock, shares outstanding (in shares)	121,775,608	122,694,263
Treasury stock (in shares)	8,965,853	8,047,198