Earnings Per Share - Schedule of Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net income attributable to common shareholders, basic	$ 3,531	$ 2,844	$ 2,083
Net income attributable to common shareholders, diluted	$ 3,531	$ 2,844	$ 2,083
Denominator:
Basic - weighted-average common shares (in shares)	128.3	128.5	128.4
Dilutive effect of equity-based awards (in shares)	1.9	1.7	1.5
Diluted - weighted-average common shares (in shares)	130.2	130.2	129.9
Basic earnings per share (in USD per share)	$ 27.52	$ 22.13	$ 16.23
Diluted earnings per share (in USD per share)	$ 27.12	$ 21.84	$ 16.04