v3.26.1
Segment, Geographical Area, Major Customer and Major Supplier Information (Geographical Information - Net Sales) (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 18,434 $ 17,149 $ 16,210
United States      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 8,200 7,301 7,001
Asia and Other Pacific      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 2,542 2,492 2,345
Brazil      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 2,592 2,624 2,351
Canada      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 128 157 154
Germany      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 4,442 4,114 3,816
Other Europe      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 530 $ 461 $ 543