Investments in Marketable Securities - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2024	Mar. 31, 2024
Marketable Securities [Abstract]
Fair value option elected	$ 762,000,000	$ 778,000,000
Available-for-sale debt securities unrealized loss	$ 75,000,000	$ 70,000,000
Private placement share redemption percentage	1.00%
Private placement share redemption amount	$ 250,000
Share redemption period	90 days