PROPERTY, EQUIPMENT AND SOFTWARE (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	$ 1,544.2	$ 1,690.9
Less: Accumulated Depreciation	(935.9)	(1,121.0)	$ (1,074.5)
Less: Accumulated Impairment	(8.8)	(8.8)
Property, Equipment and Software, Net	599.5	561.1
Depreciation expense	132.9	131.5	$ 142.4
Technology and Other Equipment
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	267.6	273.2
Software
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	800.0	930.6
Land and Buildings
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	87.3	87.8
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	277.7	226.2
Work in Process
Property, Plant and Equipment [Line Items]
Property, Equipment and Software, Gross	$ 111.6	$ 173.1

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- Definition

The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

+ References

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of accumulated depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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No definition available.

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