XML 13 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2021
Nov. 03, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Entity Registrant Name APi Group Corporation  
Entity Central Index Key 0001796209  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Entity Address, Address Line One 1100 Old Highway 8 NW  
Entity Address, City or Town New Brighton  
Entity Address, State or Province MN  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-39275  
Entity Tax Identification Number 98-1510303  
Entity Address, Postal Zip Code 55112  
City Area Code 651  
Local Phone Number 636-4320  
Entity Small Business false  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock  
Trading Symbol APG  
Security Exchange Name NYSE  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   224,625,193
Document Quarterly Report true  
Document Transition Report false