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Property, Equipment And Software (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
The following is a summary of property, equipment and software:
$ in millionsDecember 31, 2020December 31, 2019
Technology and Other Equipment302.4 310.5 
Software810.7 733.4 
Land and Buildings119.0 110.3 
Leasehold Improvements254.7 274.1 
Work in Process83.1 74.4 
Property, Equipment and Software, Gross1,569.9 1,502.7 
Less: Accumulated Depreciation(1,001.7)(919.2)
Less: Impairment Expense (1)
(4.4)— 
Property, Equipment and Software, Net563.8 583.5 
__________
(1)    During the year ended December 31, 2020, the company recorded an impairment expense of $17.8 million to transaction, integration and restructuring expense related to a property we intend to sublease, of which $4.4 million related to leasehold improvements and $13.4 million related to the right-of-use assets (see Note 15, “Operating Leases”).