DISCONTINUED OPERATIONS AND SIGNIFICANT DISPOSALS - Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Discontinued operations
Loss from discontinued operations, net of taxes	$ 30	$ 10	$ 55	$ 9
Results of Discontinued Operations
Total revenues, net of interest expense	0	0	0	0
Loss from discontinued operations	(37)	(15)	(76)	(14)
Benefit for income taxes	(7)	(5)	(21)	(5)
Loss from discontinued operations, net of taxes	(30)	(10)	(55)	(9)
Brazil Creditcard
Discontinued operations
Loss from discontinued operations, net of taxes	0	0	0	(6)
Results of Discontinued Operations
Loss from discontinued operations, net of taxes	0	0	0	6
Egg Banking PLC
Discontinued operations
Loss from discontinued operations, net of taxes	24	10	46	16
Results of Discontinued Operations
Loss from discontinued operations, net of taxes	$ (24)	$ (10)	$ (46)	$ (16)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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