Segment Information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Summarized Financial Information Reportable Segments

Summarized financial information concerning the Company’s reportable segments is shown in the following table.

	Year Ended December 31, 2024
(in millions)	Retail			Programs			Wholesale Brokerage		Total
Total segment revenues	$	2,729		$	1,400		$	616	$	4,745
Reconciliation of revenues
Other (1)										60
Total consolidated revenues									$	4,805
Less: (2)
Employee compensation and benefits		1,462			450			322
Other operating expenses		449			290			92
(Gain)/loss on disposal		(3	)		(28	)		—
Depreciation and amortization		140			62			15
Interest		71			30			11
Change in estimated acquisition earn-out payables		8			(7	)		1
Segment Income before income taxes	$	602		$	603		$	175	$	1,380
Reconciliation of income before income taxes
Other (1)										(77	)
Consolidated Income before income taxes									$	1,303

	Year Ended December 31, 2023
(in millions)	Retail			Programs			Wholesale Brokerage		Total
Total segment revenues	$	2,508		$	1,173		$	541	$	4,222
Reconciliation of revenues
Other (1)										35
Total consolidated revenues									$	4,257
Less: (2)
Employee compensation and benefits		1,336			425			284
Other operating expenses		421			247			85
(Gain)/loss on disposal		(3	)		(141	)		—
Depreciation and amortization		131			55			14
Interest		85			36			12
Change in estimated acquisition earn-out payables		1			—			20
Segment Income before income taxes	$	537		$	551		$	126	$	1,214
Reconciliation of income before income taxes
Other (1)										(68	)
Consolidated Income before income taxes									$	1,146

	Year Ended December 31, 2022
(in millions)	Retail			Programs			Wholesale Brokerage			Total
Total segment revenues	$	2,157		$	958		$	453		$	3,568
Reconciliation of revenues
Other (1)											5
Total consolidated revenues										$	3,573
Less: (2)
Employee compensation and benefits		1,126			376			239
Other operating expenses		377			223			70
(Gain)/loss on disposal		(8	)		1			3
Depreciation and amortization		115			53			12
Interest		96			33			13
Change in estimated acquisition earn-out payables		(26	)		(11	)		(2	)
Segment Income before income taxes	$	477		$	283		$	118		$	878
Reconciliation of income before income taxes
Other (1)											(2	)
Consolidated Income before income taxes										$	876

(1) "Other" includes any income and expenses not allocated to reportable segments and corporate-related items.

(2) Significant expense categories and amounts align with the segment-level information that is regularly provided to the CODM.