Other income, net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Other Income and Expenses [Abstract]
Equity method investments, cash dividends			$ 112	$ 114
Equity method investments, sales to and services performed for	$ 27	$ 20	$ 69	$ 54

Proceeds from Equity Method Investment, Distributions For Return Of Investment and Return On Investment

No definition available.

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Balance Type:	debit
Period Type:	duration