BASIS OF PRESENTATION (Details)	Sep. 30, 2013 policy
BASIS OF PRESENTATION
Ownership percentage, if less than this amount then income from investments is recognized when dividends are received	20.00%
Number of significant accounting policies	6

The maximum percentage of ownership for the entity to reflect recognition of income as dividends is received.

No definition available.

Name:	c_MaximumOwnershipPercentageIncomeRecognitionUponReceiptOfDividends
Namespace Prefix:	c_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant