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Additional Financial Information - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026
Transfer of Financial Assets Accounted for as Sales [Line Items]
Employee-related liabilities	$ 93.1		$ 86.1
Operating lease liabilities	296.6		301.2
Income tax expense (benefit) reflected in other comprehensive income (loss)	0.0	$ 0.0
Individual Monetization Agreements | Trade Accounts Receivable
Transfer of Financial Assets Accounted for as Sales [Line Items]
Derecognized accounts receivable for which the company continues to service, amount outstanding	$ 249.0		$ 314.4

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Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that have been derecognized. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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