BASIS OF PRESENTATION (Details 2) (USD $)	3 Months Ended			9 Months Ended		3 Months Ended			0 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012 OCC Chapter 7 Bankruptcy Guidance	Sep. 30, 2012 OCC Chapter 7 Bankruptcy Guidance	Jun. 30, 2013 Effect of change in the measurement policy from annually to quarterly	Apr. 02, 2013 Effect of change in the measurement policy from annually to quarterly Pension liability adjustments
New Accounting Pronouncements or Change in Accounting Principle
Percentage of The Significant Plans over global pension and postretirement liabilities, which utilize quarterly measurement policy								80.00%
Pretax decrease in net periodic plan expense								$ 20,000,000
Pretax increase of approximately to accumulated other comprehensive income									22,000,000
Incremental charge-offs due to implementation of new guidance	2,974,000,000	4,516,000,000		9,675,000,000	13,365,000,000	(40,000,000)	635,000,000
Release of loan loss reserve due to implementation of new guidance	(767,000,000)	(860,000,000)		(1,715,000,000)	(1,715,000,000)		(600,000,000)
Net reduction in pretax income due to implementation of new guidance							35,000,000
Increase in TDRs resulted from implementation of new guidance							1,700,000,000
Increase in non-accrual loans resulted from implementation of new guidance							1,500,000,000
Increase in current non-accrual loans resulted from implementation of new guidance							1,300,000,000
Reserves released as a result of implementing the prohibition on valuation adjustments			125,000,000
Reduction in deferred asset cost as a result of adoption of new accounting standards for deferred asset acquisition costs			165,000,000
Deferred tax asset recorded as a result of adoption of new accounting standards for deferred asset acquisition costs			58,000,000
Change in opening retained earning as a result of adoption of new accounting standards for deferred asset acquisition costs			$ 107,000,000