Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Estimated Useful Lives	Years
Buildings	16 to 25
Building leasehold improvements	3 to 10
Vehicles	3 to 10
Capitalized software	3 to 5
Other machinery and equipment	3 to 10

The following table presents our property and equipment that is classified as held and used:

	December 31,
(In millions)	2022		2021
Land	$	49.9	50.4
Buildings	226.2		224.6
Leasehold improvements	271.7		271.4
Vehicles	755.2		712.7
Capitalized software(a)	237.0		233.2
DRS devices leased to customers	190.3		170.7
Other machinery and equipment	666.4		624.3
	2,396.7		2,287.3
Accumulated depreciation and amortization	(1,461.4)		(1,421.7)
Property and equipment, net	$	935.3	865.6

(a)Amortization of capitalized software costs included in continuing operations was $16.1 million in 2022, $14.5 million in 2021 and $14.7 million in 2020.