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Discontinued Operations and Disposal Groups - Narrative (Details) - USD ($) $ in Millions		9 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Assets and Liabilities Held for Sale and Discontinued Operation
Taxes Payable		$ 111.7
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 218.6	$ 0.0
Oxford Business | Discontinued Operations
Assets and Liabilities Held for Sale and Discontinued Operation
Proceeds from Sale of Property Held-for-sale	$ 525.0

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- Definition

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

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