XML 258 R77.htm IDEA: XBRL DOCUMENT v3.25.1
Income Taxes - Reconciliation of Income Tax (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Income Tax Disclosure [Abstract]      
Income tax expense computed at U.S. federal statutory rate $ 256 $ 179 $ 77
Increases (reductions) resulting from:      
State and local income taxes, net of federal tax 55 85 33
Foreign income taxes, net of federal tax 0 (8) 5
Non-deductible expenses, including non-deductible penalties 7 5 35
Excess tax benefits from stock-based compensation (6) (10) (5)
Research and development and other federal credits (40) (31) (33)
Executive compensation -162(m) 7 6 4
Foreign-Derived Intangible Income (FDII) (13) (14) (16)
Changes in uncertain tax positions (including indirect effects) 27 38 (6)
Other (9) (2) 3
Total $ 284 $ 248 $ 97