Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information Business Segment Information - Narrative (Details)

v2.4.0.8
Business Segment Information Business Segment Information - Narrative (Details) (USD $)
9 Months Ended
Sep. 30, 2014
segments
atm
banking_center
state
Segment Reporting Information [Line Items]  
Number of operating segments 5
Number of states in which entity operates 31
Number of banking centers 4,900
Number of ATMs 15,700
Minimum | Consumer & Business Banking
 
Segment Reporting Information [Line Items]  
Annual sales of business clients $ 1,000,000
Maximum | Consumer & Business Banking
 
Segment Reporting Information [Line Items]  
Annual sales of business clients $ 50,000,000