Revenue Recognition - Summary of Revenue by Reportable Operating Segment and Geography (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020
Disaggregation of Revenue [Line Items]
Revenues from external customers	$ 5,354.4	$ 4,457.7
North America
Disaggregation of Revenue [Line Items]
Revenues from external customers	2,011.2	1,881.2
Europe and Africa
Disaggregation of Revenue [Line Items]
Revenues from external customers	2,077.0	1,752.6
Asia
Disaggregation of Revenue [Line Items]
Revenues from external customers	1,085.5	676.3
South America
Disaggregation of Revenue [Line Items]
Revenues from external customers	180.7	147.6
Seating
Disaggregation of Revenue [Line Items]
Revenues from external customers	3,996.0	3,366.6
Seating | North America
Disaggregation of Revenue [Line Items]
Revenues from external customers	1,668.6	1,573.7
Seating | Europe and Africa
Disaggregation of Revenue [Line Items]
Revenues from external customers	1,474.7	1,236.0
Seating | Asia
Disaggregation of Revenue [Line Items]
Revenues from external customers	716.7	457.4
Seating | South America
Disaggregation of Revenue [Line Items]
Revenues from external customers	136.0	99.5
E-Systems
Disaggregation of Revenue [Line Items]
Revenues from external customers	1,358.4	1,091.1
E-Systems | North America
Disaggregation of Revenue [Line Items]
Revenues from external customers	342.6	307.5
E-Systems | Europe and Africa
Disaggregation of Revenue [Line Items]
Revenues from external customers	602.3	516.6
E-Systems | Asia
Disaggregation of Revenue [Line Items]
Revenues from external customers	368.8	218.9
E-Systems | South America
Disaggregation of Revenue [Line Items]
Revenues from external customers	$ 44.7	$ 48.1