Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (USD $) In Millions	Jun. 30, 2011		Dec. 31, 2010
Assets
Loans held for sale	$ 1,925		$ 3,168
Fair Value, Measurements, Recurring
Assets
Trading assets	6,586		6,175
Loans held for sale	1,925		3,168
LHFI	449		492
Other intangible assets	1,423		1,439
Other assets	198	[1]	241	[1]
Liabilities
Trading liabilities	3,026		2,678
Brokered deposits	1,140		1,213
Long-term debt	2,022		2,837
Other liabilities	42	[1]	114	[1]
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Assets
Trading assets	339		353
Other assets	1	[1]
Liabilities
Trading liabilities	672		559
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Available-for-Sale Securities
Assets
Securities available for sale	2,745		7,489
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Available-for-Sale Securities | US Treasury Securities
Assets
Securities available for sale	726		5,516
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Available-for-Sale Securities | Equity Securities, Coca Cola
Assets
Securities available for sale	2,019		1,973
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | US Treasury Securities
Assets
Trading assets	127		187
Liabilities
Trading liabilities	509		439
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Equity Securities
Liabilities
Trading liabilities	14
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Derivative Financial Instruments, Assets
Assets
Trading assets	212		166
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Derivative Financial Instruments, Liabilities
Liabilities
Trading liabilities	149		120
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets
Trading assets	6,185		5,613
Loans held for sale	1,922		3,161
Other assets	167	[1]	223	[1]
Liabilities
Trading liabilities	2,200		1,974
Brokered deposits	1,140		1,213
Long-term debt	2,022		2,837
Other liabilities	24	[1]	72	[1]
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities
Assets
Securities available for sale	23,471		18,270
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | US Government Agencies Debt Securities
Assets
Securities available for sale	2,566		1,895
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | US States and Political Subdivisions Debt Securities
Assets
Securities available for sale	448		505
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets
Securities available for sale	19,331		14,358
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | Collateralized Debt Obligations
Assets
Securities available for sale	337		50
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | Asset-backed Securities
Assets
Securities available for sale	606		788
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | Corporate And Other Debt Securities
Assets
Securities available for sale	51		477
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Available-for-Sale Securities | Equity Securities, Other
Assets
Securities available for sale	132	[2]	197	[3]
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | US Government Agencies Debt Securities
Assets
Trading assets	504		361
Liabilities
Trading liabilities	1
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | US States and Political Subdivisions Debt Securities
Assets
Trading assets	42		123
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets
Trading assets	271		301
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Mortgage-backed Securities, Issued by Private Enterprises
Assets
Trading assets			9
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Collateralized Debt Obligations
Assets
Trading assets	2		2
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Asset-backed Securities
Assets
Trading assets	32		32
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Corporate And Other Debt Securities
Assets
Trading assets	806		743
Liabilities
Trading liabilities	359		398
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Commercial Paper
Assets
Trading assets	129		14
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Equity Securities
Assets
Trading assets	78		98
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Derivative Financial Instruments, Assets
Assets
Trading assets	2,740		2,577
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Trading Loans
Assets
Trading assets	1,581		1,353
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Residential Mortgage, Loans Held For Sale
Assets
Loans held for sale	1,593		2,845
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Corporate and Other
Assets
Loans held for sale	329		316
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Derivative Financial Instruments, Liabilities
Liabilities
Trading liabilities	1,840		1,576
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Assets
Trading assets	62		209
Loans held for sale	3		7
LHFI	449		492
Other intangible assets	1,423		1,439
Other assets	30	[1]	18	[1]
Liabilities
Trading liabilities	154		145
Other liabilities	18	[1]	42	[1]
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities
Assets
Securities available for sale	1,000		1,136
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities | US States and Political Subdivisions Debt Securities
Assets
Securities available for sale	68		74
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities | Mortgage-backed Securities, Issued by Private Enterprises
Assets
Securities available for sale	311		347
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities | Asset-backed Securities
Assets
Securities available for sale	19		20
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities | Corporate And Other Debt Securities
Assets
Securities available for sale	5		5
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Available-for-Sale Securities | Equity Securities, Other
Assets
Securities available for sale	597	[2]	690	[3]
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Mortgage-backed Securities, Issued by Private Enterprises
Assets
Trading assets	2		6
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Collateralized Debt Obligations
Assets
Trading assets	42		53
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Asset-backed Securities
Assets
Trading assets	5		27
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Equity Securities
Assets
Trading assets	13		123
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Residential Mortgage, Loans Held For Sale
Assets
Loans held for sale	3		2
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Corporate and Other
Assets
Loans held for sale			5
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Derivative Financial Instruments, Liabilities
Liabilities
Trading liabilities	154		145
Fair Value, Measurements, Recurring | Available-for-Sale Securities
Assets
Securities available for sale	27,216		26,895
Fair Value, Measurements, Recurring | Available-for-Sale Securities | US Treasury Securities
Assets
Securities available for sale	726		5,516
Fair Value, Measurements, Recurring | Available-for-Sale Securities | US Government Agencies Debt Securities
Assets
Securities available for sale	2,566		1,895
Fair Value, Measurements, Recurring | Available-for-Sale Securities | US States and Political Subdivisions Debt Securities
Assets
Securities available for sale	516		579
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets
Securities available for sale	19,331		14,358
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Mortgage-backed Securities, Issued by Private Enterprises
Assets
Securities available for sale	311		347
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Collateralized Debt Obligations
Assets
Securities available for sale	337		50
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Asset-backed Securities
Assets
Securities available for sale	625		808
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Corporate And Other Debt Securities
Assets
Securities available for sale	56		482
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Equity Securities, Coca Cola
Assets
Securities available for sale	2,019		1,973
Fair Value, Measurements, Recurring | Available-for-Sale Securities | Equity Securities, Other
Assets
Securities available for sale	729	[2]	887	[3]
Fair Value, Measurements, Recurring | US Treasury Securities
Assets
Trading assets	127		187
Liabilities
Trading liabilities	509		439
Fair Value, Measurements, Recurring | US Government Agencies Debt Securities
Assets
Trading assets	504		361
Liabilities
Trading liabilities	1
Fair Value, Measurements, Recurring | US States and Political Subdivisions Debt Securities
Assets
Trading assets	42		123
Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets
Trading assets	271		301
Fair Value, Measurements, Recurring | Mortgage-backed Securities, Issued by Private Enterprises
Assets
Trading assets	2		15
Fair Value, Measurements, Recurring | Collateralized Debt Obligations
Assets
Trading assets	44		55
Fair Value, Measurements, Recurring | Asset-backed Securities
Assets
Trading assets	37		59
Fair Value, Measurements, Recurring | Corporate And Other Debt Securities
Assets
Trading assets	806		743
Liabilities
Trading liabilities	359		398
Fair Value, Measurements, Recurring | Commercial Paper
Assets
Trading assets	129		14
Fair Value, Measurements, Recurring | Equity Securities
Assets
Trading assets	91		221
Liabilities
Trading liabilities	14
Fair Value, Measurements, Recurring | Derivative Financial Instruments, Assets
Assets
Trading assets	2,952		2,743
Fair Value, Measurements, Recurring | Trading Loans
Assets
Trading assets	1,581		1,353
Fair Value, Measurements, Recurring | Residential Mortgage, Loans Held For Sale
Assets
Loans held for sale	1,596		2,847
Fair Value, Measurements, Recurring | Corporate and Other
Assets
Loans held for sale	329		321
Fair Value, Measurements, Recurring | Derivative Financial Instruments, Liabilities
Liabilities
Trading liabilities	$ 2,143		$ 1,841

[1] These amounts include IRLCs and derivative financial instruments entered into by the Mortgage line of business to hedge its interest rate risk along with a derivative associated with the Company's sale of Visa shares during the year ended December 31, 2009.

[2] Includes $205 million of FHLB of Atlanta stock stated at par value and $391 million of Federal Reserve Bank stock stated at par value.

[3] Includes $298 million of FHLB of Atlanta stock stated at par value and $391 million of Federal Reserve Bank stock stated at par value.