Receivables - Receivables, Net of Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 3,253	$ 3,441
Billed trade receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,433	1,530
Unbilled receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,124	1,105
Other receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 696	$ 806