XML 34 R18.htm IDEA: XBRL DOCUMENT v3.24.0.1
Property and Equipment
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Property and Equipment Property and Equipment
Property and equipment consists of the following (dollars in millions):
December 31,
Useful Lives20232022
Computer hardware and software
2-10 years
$1,341 $1,158 
Leasehold improvements
1-15 years
658 611 
Furniture and equipment
1-10 years
298 268 
Construction in progressN/A186 185 
Total cost2,483 2,222 
Accumulated depreciation and amortization1,576 1,386 
Property and equipment, net$907 $836 
Depreciation and amortization expense associated with property and equipment was $289.6 million, $260.8 million and $244.9 million for the years ended December 31, 2023, 2022 and 2021, respectively. There were no asset impairment charges related to property and equipment during the years ended December 31, 2023, 2022 and 2021.
Construction in progress includes capitalizable costs incurred during the development stage of computer software and leasehold improvements that have not yet been placed in service.