Dividends Declared (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2024	Mar. 31, 2023
Equity [Abstract]
Declaration Date	Mar. 12, 2024	Nov. 28, 2023	Sep. 19, 2023	Mar. 14, 2023	Nov. 29, 2022	Sep. 20, 2022
Record Date	May 16, 2024	Feb. 15, 2024	Nov. 16, 2023	May 18, 2023	Feb. 16, 2023	Nov. 17, 2022
Payment Date	Jun. 13, 2024	Mar. 14, 2024	Dec. 14, 2023	Jun. 08, 2023	Mar. 09, 2023	Dec. 08, 2022
Dividend Per Share	$ 0.75	$ 0.75	$ 0.75	$ 0.68	$ 0.68	$ 0.68	$ 2.25	$ 2.04
Amount	$ 5,574	$ 5,573	$ 5,574	$ 5,054	$ 5,059	$ 5,066	$ 16,721	$ 15,179