Financial Instruments and Commodity Contracts - Gain (Loss) Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Total loss (gain) recognized in other expenses (income), net	$ 30	$ (36)
Other Operating Income (Expense)
Derivative Instruments, Gain (Loss) [Line Items]
Losses (gains) recognized on balance sheet remeasurement currency exchange contracts, net	11	(8)
Realized losses (gains) on change in fair value of derivative instruments, net	26	(24)
Unrealized gains on change in fair value of derivative instruments, net	(7)	(4)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Total loss (gain) recognized in other expenses (income), net	30	(35)
Not Designated as Hedging Instrument | Metal Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total loss (gain) recognized in other expenses (income), net	15	(24)
Not Designated as Hedging Instrument | Currency Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total loss (gain) recognized in other expenses (income), net	15	(11)
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Total loss (gain) recognized in other expenses (income), net	$ 0	$ (1)