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Inventories (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventories
LIFO inventories - cost on FIFO method	$ 2,498.2	$ 1,226.0
Cost on FIFO method higher than LIFO value	(820.4)	(115.6)
Inventories - stated on LIFO method	1,677.8	1,110.4
Inventories - stated on FIFO method	387.2	310.0
Inventories	2,065.0	1,420.4
LIFO inventory valuation reserve expense (income)	$ 704.8	$ (22.0)	$ (156.0)

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- Definition

Represents the amount of LIFO inventory cost on FIFO method.

+ References

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The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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