Share-Based Compensation (Grants Under All Synovus Equity Compensation Plan) (Details) (USD $)	12 Months Ended						12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Shareholder Approved Equity Compensation Plans for Shares of Synovus Stock [Member]	Dec. 31, 2013 2007 Omnibus Plan [Member]	Dec. 31, 2013 Non-Shareholder Approved Equity Compensation Plans [Member]	Dec. 31, 2013 Assumed in Mergers [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2012 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2011 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2010 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member] Shareholder Approved Equity Compensation Plans for Shares of Synovus Stock [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member] Non-Shareholder Approved Equity Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of securities to be issued upon vesting of restricted share units								4,071,739	6,442,979	4,527,975	880,401	4,071,739	0
Number of securities to be issued upon exercise of outstanding options	22,437,168			22,437,168		0
Weighted-average exercise price of outstanding options in column (b)	$ 6.96			$ 6.96		$ 0.00
Number of shares remaining available for issuance excluding shares reflected in columns (a) and (b)	57,126,291			57,126,291	57,126,291	0
Options exercised, shares	13,994,362	13,296,595	14,365,773				103,600
Options granted, weighted-average exercise price (per share)	$ 2.52	$ 2.05	$ 0.00				$ 8.53