XML 47 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Cover Page - shares
 3 Months Ended
Apr. 04, 2020
May 05, 2020
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Apr. 04, 2020  
Document Transition Report false  
Entity File Number 001-11311  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 13-3386776  
Entity Address, Address Line One 21557 Telegraph Road  
Entity Address, City or Town Southfield  
Entity Address, State or Province MI  
Entity Address, Postal Zip Code 48033  
City Area Code 248  
Local Phone Number 447-1500  
Title of 12(b) Security Common stock, par value $0.01  
Trading Symbol LEA  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   59,919,614
Amendment Flag false  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Registrant Name LEAR CORP  
Entity Central Index Key 0000842162  
Current Fiscal Year End Date --12-31