Income Taxes - Summary, Reconciliation and Other (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 156.2	$ 277.0	$ 418.9
State	39.9	73.8	112.9
Foreign	29.4	33.6	61.1
Total	225.5	384.4	592.9
Deferred:
Federal	31.7	18.0	(3.7)
State	5.9	0.3	(2.0)
Foreign	(1.2)	(2.1)	(1.0)
Total	36.4	16.2	(6.7)
Income tax provision	261.9	400.6	586.2
Components of U.S. and international income before income taxes
US	1,021.3	1,579.4	2,199.2
International	118.6	161.3	231.2
Income before income taxes	$ 1,139.9	$ 1,740.7	$ 2,430.4
Reconciliation of income tax at the U.S. federal statutory tax rates to income tax expense
Income tax at U.S. federal statutory tax rate (as a percent)	21.00%	21.00%	21.00%
State income tax, net of federal tax effect (as a percent)	3.10%	3.40%	3.50%
Foreign earnings taxed at higher (lower) rates (as a percent)	0.30%	(0.10%)	0.50%
Net effect of life insurance policies (as a percent)	(1.60%)	(1.10%)	(0.60%)
Other, net (as a percent)	0.20%	(0.20%)	(0.30%)
Effective tax rate (as a percent)	23.00%	23.00%	24.10%
Deferred tax assets:
Allowance for credit losses	$ 6.5	$ 6.8
Inventory costs capitalized for tax purposes	13.1	13.1
Accrued expenses not currently deductible for tax	33.0	32.0
Stock-based compensation	10.4	12.7
Net operating loss carryforwards	1.5	2.5
Tax credits carryforwards	0.4	0.4
Total deferred tax assets	64.9	67.5
Deferred tax liabilities:
Property, plant and equipment, net	(224.3)	(208.4)
Goodwill and other intangible assets	(351.9)	(342.8)
LIFO inventories	(20.7)	(6.3)
Other	(5.5)	(4.0)
Total deferred tax liabilities	(602.4)	(561.5)
Net deferred tax liabilities	$ (537.5)	$ (494.0)