Income Taxes - Components Of Provision For Income Taxes Related To Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Current
Federal	$ 867	$ 619	$ 233
State	231	126	129
Foreign	134	180	240
Total current	1,232	925	602
Deferred
Federal	(360)	(46)	88
State	(133)	36	(16)
Foreign	(110)	(10)	(38)
Total deferred	(603)	(20)	34
Income tax expense	$ 629	$ 905	$ 636
Income tax expense (benefit) rates (percent)	16.60%	19.50%	33.00%

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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