Inventories (Tables)

12 Months Ended

Dec. 31, 2023

Inventories

Schedule of inventories

	December 31,		December 31,
	2023		2022
	(in millions)
LIFO inventories—cost on FIFO method	$	2,087.3	$	2,257.9
Cost on FIFO method higher than LIFO value		(579.3)		(743.8)
Inventories—stated on LIFO method		1,508.0		1,514.1
Inventories—stated on FIFO method		535.2		481.2
	$	2,043.2	$	1,995.3

Schedule of changes in the LIFO valuation reserve

	Year Ended December 31,
	2023		2022		2021
	(in millions)
LIFO inventory valuation reserve (income) expense	$	(164.5)	$	(76.6)	$	704.8