XML 79 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Cover Page - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2019
Jan. 31, 2020
Jun. 30, 2019
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 1-4797    
Entity Registrant Name ILLINOIS TOOL WORKS INC    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 36-1258310    
Entity Address, Address Line One 155 Harlem Avenue    
Entity Address, City or Town Glenview    
Entity Address, State or Province IL    
Entity Address, Postal Zip Code 60025    
City Area Code 847    
Local Phone Number 724-7500    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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 Public Float     $ 45.6
Entity Common Stock, Shares Outstanding   318,864,237  
Documents Incorporated by Reference
Portions of the 2020 Proxy Statement for Annual Meeting of Stockholders to be held on May 8, 2020.
 
Part III

    
Entity Central Index Key 0000049826    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Common Stock      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock    
Trading Symbol ITW    
Security Exchange Name NYSE    
1.75% Euro Notes due 2022      
Entity Information [Line Items]      
Title of 12(b) Security 1.75% Euro Notes due 2022    
Trading Symbol ITW22    
Security Exchange Name NYSE    
1.25% Euro Notes due 2023      
Entity Information [Line Items]      
Title of 12(b) Security 1.25% Euro Notes due 2023    
Trading Symbol ITW23    
Security Exchange Name NYSE    
0.250% Euro Notes due 2024      
Entity Information [Line Items]      
Title of 12(b) Security 0.250% Euro Notes due 2024    
Trading Symbol ITW24A    
Security Exchange Name NYSE    
0.625% Euro Notes due 2027      
Entity Information [Line Items]      
Title of 12(b) Security 0.625% Euro Notes due 2027    
Trading Symbol ITW27    
Security Exchange Name NYSE    
2.125% Euro Notes due 2030      
Entity Information [Line Items]      
Title of 12(b) Security 2.125% Euro Notes due 2030    
Trading Symbol ITW30    
Security Exchange Name NYSE    
1.00% Euro Notes due 2031      
Entity Information [Line Items]      
Title of 12(b) Security 1.00% Euro Notes due 2031    
Trading Symbol ITW31    
Security Exchange Name NYSE    
3.00% Euro Notes due 2034      
Entity Information [Line Items]      
Title of 12(b) Security 3.00% Euro Notes due 2034    
Trading Symbol ITW34    
Security Exchange Name NYSE