Business	3 Months Ended
Mar. 31, 2015
Accounting Policies [Abstract]
Business	1. BUSINESS The condensed consolidated financial statements include the accounts of CVB Financial Corp. (referred to herein on an unconsolidated basis as “CVB” and on a consolidated basis as “we,” “our” or the “Company”) and its wholly owned subsidiaries: Citizens Business Bank (the “Bank” or “CBB”) after elimination of all intercompany transactions and balances. The Company has one inactive subsidiary, Chino Valley Bancorp. The Company is also the common stockholder of CVB Statutory Trust III. CVB Statutory Trust III was created in January 2006 to issue trust preferred securities in order to raise capital for the Company. In accordance with ASC 810 Consolidation, this trust does not meet the criteria for consolidation. The Company’s primary operations are related to traditional banking activities, including the acceptance of deposits and the lending and investing of money through the operations of the Bank. The Bank also provides automobile and equipment leasing to customers through its Citizens Financial Services Group and trust and investment-related services to customers through its CitizensTrust Division. The Bank’s customers consist primarily of small to mid-sized businesses and individuals located in San Bernardino County, Riverside County, Los Angeles County, Orange County, Ventura County, San Diego County, Madera County, Fresno County, Tulare County and Kern County, California. The Bank operates 40 Business Financial Centers, seven Commercial Banking Centers, and three trust office locations. The Company is headquartered in the city of Ontario, California.

1. BUSINESS

The condensed consolidated financial statements include the accounts of CVB Financial Corp. (referred to herein on an unconsolidated basis as “CVB” and on a consolidated basis as “we,” “our” or the “Company”) and its wholly owned subsidiaries: Citizens Business Bank (the “Bank” or “CBB”) after elimination of all intercompany transactions and balances. The Company has one inactive subsidiary, Chino Valley Bancorp. The Company is also the common stockholder of CVB Statutory Trust III. CVB Statutory Trust III was created in January 2006 to issue trust preferred securities in order to raise capital for the Company. In accordance with ASC 810 Consolidation, this trust does not meet the criteria for consolidation.

The Company’s primary operations are related to traditional banking activities, including the acceptance of deposits and the lending and investing of money through the operations of the Bank. The Bank also provides automobile and equipment leasing to customers through its Citizens Financial Services Group and trust and investment-related services to customers through its CitizensTrust Division. The Bank’s customers consist primarily of small to mid-sized businesses and individuals located in San Bernardino County, Riverside County, Los Angeles County, Orange County, Ventura County, San Diego County, Madera County, Fresno County, Tulare County and Kern County, California. The Bank operates 40 Business Financial Centers, seven Commercial Banking Centers, and three trust office locations. The Company is headquartered in the city of Ontario, California.