Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2026	Mar. 31, 2025
Debt Instrument [Line Items]
Less: Unamortized debt issuance costs and discount on debt	$ (24)	$ (28)
Total	3,940	3,998
Less: Current portion of long-term debt	(19)	(83)
Long-term debt, net of current portion	$ 3,921	$ 3,915
Senior Notes due 2028 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	3.875%	3.875%
Outstanding Balance	$ 700	$ 700
Senior Notes due 2029 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	4.00%	4.00%
Outstanding Balance	$ 500	$ 500
Senior Notes due 2033 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	5.95%	5.95%
Outstanding Balance	$ 650	$ 650
Senior Notes due 2035 \| Senior Notes
Debt Instrument [Line Items]
Interest Rate	5.95%	5.95%
Outstanding Balance	$ 650	$ 650
Credit Agreement \| Line of Credit \| Term Loan A-1
Debt Instrument [Line Items]
Interest Rate	5.018%	5.675%
Outstanding Balance	$ 714	$ 1,526
Credit Agreement \| Line of Credit \| Term Loan A-2
Debt Instrument [Line Items]
Interest Rate	4.923%	0.00%
Outstanding Balance	$ 750	$ 0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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