INTANGIBLE ASSETS AND GOODWILL - Goodwill Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
Jan. 31, 2020	Mar. 31, 2020
Goodwill
Beginning Balance	$ 954.9	$ 954.9
Goodwill related to sale of Precima		(3.2)
Effects of foreign currency translation		(22.6)
Ending Balance		929.1
Operating segment \| LoyaltyOne
Goodwill
Beginning Balance	690.9	690.9
Goodwill related to sale of Precima	(3.2)	(3.2)
Effects of foreign currency translation		(22.6)
Ending Balance		665.1
Operating segment \| Card Services
Goodwill
Beginning Balance	$ 264.0	264.0
Ending Balance		$ 264.0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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