Other Financial Statement Details - Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 1,406.1		$ 1,406.1		$ 1,313.9
Less: allowance for expected credit losses	8.0		8.0		8.6
Total accounts receivable, net	1,398.1		1,398.1		1,305.3
Trade accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	1,392.6		1,392.6		1,300.4
Trade accounts receivable sold	0.0	$ 208.9	64.9	$ 563.8
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 13.5		$ 13.5		$ 13.5