Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,112.1	$ 1,159.7
Goodwill recognized	7.6	0.0
Impairment charges	0.0	0.0
Currency translation	90.6	(47.6)
Goodwill, ending balance	1,210.3	1,112.1
Operating segments
Goodwill [Roll Forward]
Accumulated impairment loss	2,886.7
Operating segments | Global Ceramic
Goodwill [Roll Forward]
Goodwill, beginning balance	0.0	0.0
Goodwill recognized	0.0	0.0
Impairment charges	0.0	0.0
Currency translation	0.0	0.0
Goodwill, ending balance	0.0	0.0
Accumulated impairment loss	1,644.7
Operating segments | Flooring NA
Goodwill [Roll Forward]
Goodwill, beginning balance	372.3	372.3
Goodwill recognized	7.6	0.0
Impairment charges	0.0	0.0
Currency translation	0.0	0.0
Goodwill, ending balance	379.9	372.3
Accumulated impairment loss	557.9
Operating segments | Flooring ROW
Goodwill [Roll Forward]
Goodwill, beginning balance	739.8	787.4
Goodwill recognized	0.0	0.0
Impairment charges	0.0	0.0
Currency translation	90.6	(47.6)
Goodwill, ending balance	830.4	$ 739.8
Accumulated impairment loss	$ 684.1