INVESTMENTS - Schedule of Total Gains and Losses on Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Schedule of Investments [Abstract]
Total gains (losses) recognized on equity securities	$ (12)	$ (1)	$ 16	$ (11)
Less: Net gains (losses) recognized on equity securities sold	(1)	0	(1)	0
Unrealized gains (losses) recognized on equity securities held at end of period	$ (11)	$ (1)	$ 17	$ (11)