Revenue from Contracts with Customers - Summary of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 2,574,870	$ 2,519,185	$ 6,910,433	$ 7,546,160
Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	915,589	929,992	2,533,542	2,814,733
Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	1,035,657	1,010,131	2,691,300	2,946,402
Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	407,150	376,389	1,102,607	1,134,885
Other
Disaggregation of Revenue [Line Items]
Net sales	216,474	202,673	582,984	650,140
United States
Disaggregation of Revenue [Line Items]
Net sales	1,456,360	1,501,506	4,023,312	4,427,945
Europe
Disaggregation of Revenue [Line Items]
Net sales	665,897	594,163	1,778,408	1,928,356
Russia
Disaggregation of Revenue [Line Items]
Net sales	113,651	109,653	277,235	280,112
Other
Disaggregation of Revenue [Line Items]
Net sales	338,962	313,863	831,478	909,747
Global Ceramic segment
Disaggregation of Revenue [Line Items]
Net sales	911,303	916,422	2,513,088	2,772,805
Flooring NA segment
Disaggregation of Revenue [Line Items]
Net sales	982,292	1,001,908	2,630,710	2,907,327
Flooring ROW segment
Disaggregation of Revenue [Line Items]
Net sales	681,275	600,855	1,766,635	1,866,028
Operating segments | Global Ceramic segment
Disaggregation of Revenue [Line Items]
Net sales	911,303	916,422	2,513,088	2,772,805
Operating segments | Global Ceramic segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	908,419	916,422	2,508,604	2,772,805
Operating segments | Global Ceramic segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	2,884	0	4,484	0
Operating segments | Global Ceramic segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Global Ceramic segment | United States
Disaggregation of Revenue [Line Items]
Net sales	508,291	537,247	1,485,934	1,633,583
Operating segments | Global Ceramic segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	197,070	168,032	513,253	552,546
Operating segments | Global Ceramic segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	77,564	77,024	192,588	196,731
Operating segments | Global Ceramic segment | Other
Disaggregation of Revenue [Line Items]
Net sales	128,378	134,119	321,313	389,945
Operating segments | Flooring NA segment
Disaggregation of Revenue [Line Items]
Net sales	982,292	1,001,908	2,630,710	2,907,327
Operating segments | Flooring NA segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	7,170	13,570	24,938	41,928
Operating segments | Flooring NA segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	791,212	816,190	2,090,681	2,360,014
Operating segments | Flooring NA segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	183,910	172,148	515,091	505,385
Operating segments | Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Flooring NA segment | United States
Disaggregation of Revenue [Line Items]
Net sales	947,648	963,784	2,535,874	2,793,110
Operating segments | Flooring NA segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	2,655	1,901	6,132	5,902
Operating segments | Flooring NA segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	25	15	25	66
Operating segments | Flooring NA segment | Other
Disaggregation of Revenue [Line Items]
Net sales	31,964	36,208	88,679	108,249
Operating segments | Flooring ROW segment
Disaggregation of Revenue [Line Items]
Net sales	681,275	600,855	1,766,635	1,866,028
Operating segments | Flooring ROW segment | Ceramic & Stone
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Operating segments | Flooring ROW segment | Carpet & Resilient
Disaggregation of Revenue [Line Items]
Net sales	241,561	193,941	596,135	586,388
Operating segments | Flooring ROW segment | Laminate & Wood
Disaggregation of Revenue [Line Items]
Net sales	223,240	204,241	587,516	629,500
Operating segments | Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	216,474	202,673	582,984	650,140
Operating segments | Flooring ROW segment | United States
Disaggregation of Revenue [Line Items]
Net sales	421	475	1,504	1,252
Operating segments | Flooring ROW segment | Europe
Disaggregation of Revenue [Line Items]
Net sales	466,172	424,230	1,259,023	1,369,908
Operating segments | Flooring ROW segment | Russia
Disaggregation of Revenue [Line Items]
Net sales	36,062	32,614	84,622	83,315
Operating segments | Flooring ROW segment | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 178,620	$ 143,536	$ 421,486	$ 411,553