Goodwill (Details) $ in Millions	9 Months Ended
Sep. 30, 2026 USD ($)
Goodwill [Line Items]
Goodwill, net of accumulated amortization	$ 1,005.1
Foreign currency translation	(34.5)
Goodwill, net of accumulated amortization	970.6
Potash
Goodwill [Line Items]
Goodwill, net of accumulated amortization	993.0
Foreign currency translation	(34.5)
Goodwill, net of accumulated amortization	958.5
Corporate, Eliminations and Other
Goodwill [Line Items]
Goodwill, net of accumulated amortization	12.1
Foreign currency translation	0.0
Goodwill, net of accumulated amortization	$ 12.1

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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