Segment Reporting (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reporting segments (in segments) | segment	3
Assets	$ 12,778.6	$ 13,559.8	$ 14,120.4
Net sales	10,836.9	11,135.1	11,737.1
Long-lived assets	4,953.9	5,421.7	5,049.0
Gross profit	2,687.7	2,709.6	2,943.4
Selling, general and administrative expenses	1,984.8	2,119.7	2,003.4
Operating income (loss)	694.7	(287.8)	244.2
Depreciation and amortization	638.3	630.3	595.5
Capital expenditures (excluding acquisitions)	454.4	612.9	580.8
Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales	4,185.3	4,293.1	4,320.4
Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales	3,866.5	3,955.3	4,235.8
Laminate & Wood
Segment Reporting Information [Line Items]
Net sales	1,728.9	1,732.6	1,964.5
Other
Segment Reporting Information [Line Items]
Net sales	1,056.2	1,154.1	1,216.4
United States
Segment Reporting Information [Line Items]
Net sales	5,939.5	6,040.0	6,490.1
Long-lived assets	2,202.9	2,312.9	2,317.4
Europe
Segment Reporting Information [Line Items]
Net sales	3,194.3	3,381.0	3,701.7
Latin America
Segment Reporting Information [Line Items]
Net sales	750.5	767.8	512.2
Belgium
Segment Reporting Information [Line Items]
Long-lived assets	865.1	980.8	961.1
Other
Segment Reporting Information [Line Items]
Net sales	952.6	946.3	1,033.1
Long-lived assets	1,885.9	2,128.0	1,770.5
Operating segments | Global Ceramic
Segment Reporting Information [Line Items]
Assets	4,591.0	4,988.3	4,841.3
Net sales	4,226.6	4,300.1	4,307.7
Gross profit	1,138.5	1,179.1	1,337.4
Selling, general and administrative expenses	880.7	918.7	885.0
Operating income (loss)	249.5	(166.4)	(236.1)
Depreciation and amortization	219.4	213.1	198.9
Capital expenditures (excluding acquisitions)	160.2	249.0	154.3
Operating segments | Global Ceramic | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales	4,166.2	4,258.9	4,282.9
Operating segments | Global Ceramic | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales	60.4	41.2	24.8
Operating segments | Global Ceramic | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0
Operating segments | Global Ceramic | Other
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0
Operating segments | Global Ceramic | Europe
Segment Reporting Information [Line Items]
Net sales	1,058.3	1,071.7	1,250.0
Operating segments | Flooring NA
Segment Reporting Information [Line Items]
Assets	3,925.5	3,909.9	4,299.4
Net sales	3,769.9	3,829.4	4,207.0
Gross profit	892.0	825.8	873.5
Selling, general and administrative expenses	653.5	667.2	641.0
Operating income (loss)	238.5	(57.2)	231.1
Depreciation and amortization	224.8	221.1	231.3
Capital expenditures (excluding acquisitions)	165.1	193.9	231.1
Operating segments | Flooring NA | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales	19.1	34.2	37.5
Operating segments | Flooring NA | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales	2,941.3	3,021.1	3,296.1
Operating segments | Flooring NA | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales	809.5	774.1	873.4
Operating segments | Flooring NA | Other
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0
Operating segments | Flooring NA | Europe
Segment Reporting Information [Line Items]
Net sales	4.1	4.4	6.3
Operating segments | Flooring ROW
Segment Reporting Information [Line Items]
Assets	3,594.7	4,051.6	4,275.5
Net sales	2,840.4	3,005.6	3,222.4
Gross profit	658.3	705.0	734.2
Selling, general and administrative expenses	393.1	400.2	388.2
Operating income (loss)	265.2	69.7	340.2
Depreciation and amortization	186.2	187.5	156.0
Capital expenditures (excluding acquisitions)	122.5	156.8	178.3
Operating segments | Flooring ROW | Ceramic & Stone
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0
Operating segments | Flooring ROW | Carpet & Resilient
Segment Reporting Information [Line Items]
Net sales	864.8	893.0	914.9
Operating segments | Flooring ROW | Laminate & Wood
Segment Reporting Information [Line Items]
Net sales	919.4	958.5	1,091.1
Operating segments | Flooring ROW | Other
Segment Reporting Information [Line Items]
Net sales	1,056.2	1,154.1	1,216.4
Operating segments | Flooring ROW | Europe
Segment Reporting Information [Line Items]
Net sales	2,131.9	2,304.9	2,445.4
Corporate and intersegment eliminations
Segment Reporting Information [Line Items]
Assets	667.4	610.0	704.2
Gross profit	(1.1)	(0.3)	(1.7)
Selling, general and administrative expenses	57.5	133.6	89.2
Operating income (loss)	(58.5)	(133.9)	(91.0)
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization	7.9	8.6	9.3
Capital expenditures (excluding acquisitions)	$ 6.6	$ 13.2	$ 17.1