Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 137	$ 63	$ 242	$ 195
Effective tax rate	24.00%	26.00%	24.00%	25.00%
Net deferred income tax liability	$ 2,700		$ 2,700		$ 3,300

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details