Income Taxes - Components Of Provision For Income Taxes Related To Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Current
Federal	$ 552	$ 867	$ 619
State	182	231	126
Foreign	254	134	180
Total current	988	1,232	925
Deferred
Federal	102	(360)	(46)
State	5	(133)	36
Foreign	(217)	(110)	(10)
Total deferred	(110)	(603)	(20)
Income tax expense	$ 878	$ 629	$ 905
Income tax expense (benefit) rates (percent)	20.10%	16.60%	19.50%

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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