v3.19.1
Document and Entity Information - shares
3 Months Ended
Mar. 23, 2019
Apr. 10, 2019
Document Documentand Entity Information [Abstract]    
Entity Incorporation, State Country Name North Carolina  
Entity Tax Identification Number 131584302  
Local Phone Number 914-253-2000  
Entity Registrant Name PEPSICO INC  
Entity Central Index Key 0000077476  
Current Fiscal Year End Date --12-28  
Entity Filer Category Large Accelerated Filer  
Trading Symbol PEP  
Document Type 10-Q  
Document Period End Date Mar. 23, 2019  
Entity File Number 1-1183  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Common Stock, Shares Outstanding   1,401,821,663
Entity Address, Address Line One 700 Anderson Hill Road, Purchase, New York  
Entity Address, Postal Zip Code 10577