Commitments and Contingencies - Guarantor Obligations (Details) $ in Millions	Mar. 31, 2021 USD ($)
Guarantor Obligations [Line Items]
Fiscal 2022	$ 341
Fiscal 2023	74
Fiscal 2024 and Thereafter	590
Total	1,005
Surety bonds
Guarantor Obligations [Line Items]
Fiscal 2022	98
Fiscal 2023	18
Fiscal 2024 and Thereafter	69
Total	185
Letters of credit
Guarantor Obligations [Line Items]
Fiscal 2022	172
Fiscal 2023	30
Fiscal 2024 and Thereafter	510
Total	712
Stand-by letters of credit
Guarantor Obligations [Line Items]
Fiscal 2022	71
Fiscal 2023	26
Fiscal 2024 and Thereafter	11
Total	$ 108