Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2024

Segment revenue, segment operating expenses and segment operating income of our operating segments:


	Year Ended December 31,
	2024		2023		2022
Revenue	$	15,689.1	$	14,692.2	$	14,289.1
Segment Operating Expenses:
Salary and service costs:
Salary and related costs	$	7,441.4	$	7,212.8	$	7,197.9
Third-party service costs	3,348.6		2,917.9		2,585.5
Third-party incidental costs	642.5		570.5		542.5
Total salary and service costs	11,432.5		10,701.2		10,325.9
Occupancy and other costs	1,274.4		1,168.8		1,168.6
Segment cost of services	12,706.9		11,870.0		11,494.5
Selling, general and administrative expenses	408.1		393.7		378.5
Depreciation and amortization	241.7		211.1		219.4
Total segment operating expenses	13,356.7		12,474.8		12,092.4
Segment Operating Income	$	2,332.4	$	2,217.4	$	2,196.7

Reconciliation of segment operating income to operating income and income before income taxes and income from equity method investments:


	Year Ended December 31,
	2024		2023		2022
Segment Operating Income	$	2,332.4	$	2,217.4	$	2,196.7
Real estate and other repositioning costs	57.8		191.5		—
Changes arising from the effects of the war in Ukraine	—		—		113.4
Gain on disposition of subsidiary	—		(78.8)		—
Operating Income	$	2,274.6	$	2,104.7	$	2,083.3
Interest Expense	247.9		218.5		208.6
Interest Income	100.9		106.7		70.7
Income Before Income Taxes and Income From Equity Method Investments	$	2,127.6	$	1,992.9	$	1,945.4

Revenue and long-lived assets and goodwill by geographic region:


	Americas		EMEA		Asia-Pacific
December 31, 2024
Revenue	$	9,083.9	$	4,758.2	$	1,847.0
Long-lived assets and goodwill	8,166.6		3,693.9		685.2
December 31, 2023
Revenue	$	8,337.8	$	4,576.5	$	1,777.9
Long-lived assets and goodwill	7,749.5		3,523.3		730.8
December 31, 2022
Revenue	$	8,185.0	$	4,357.2	$	1,746.9
Long-lived assets and goodwill	7,727.0		3,315.2		757.2