XML 12 R1.htm IDEA: XBRL DOCUMENT v3.19.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2019
Jul. 31, 2019
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Document Quarterly Report true  
Entity Central Index Key 0000354647  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
Entity Interactive Data Current Yes  
Document Period End Date Jun. 30, 2019  
Entity Registrant Name CVB FINANCIAL CORP  
Entity Current Reporting Status Yes  
Trading Symbol CVBF  
Title of 12(b) Security Common Stock  
Security Exchange Name NASDAQ  
Entity File Number 000-10140  
Entity Incorporation, State or Country Code CA  
Entity Tax Identification Number 95-3629339  
Entity Address, Address Line One 701 North Haven Ave.,  
Entity Address, City or Town Ontario  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 91764  
City Area Code 909  
Local Phone Number 980-4030  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   140,143,607