Accelerating Aon United Program (Tables)

9 Months Ended

Sep. 30, 2025

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Related Costs

Total Program costs incurred for the three and nine months ended September 30, 2025 and 2024 are as follows (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Risk Capital (1)	$	(3)	$	11	$	48	$	103
Human Capital (1)	(1)		4		9		27
Corporate	36		54		179		190
Total	$	32	$	69	$	236	$	320

(1)Risk Capital and Human Capital Program costs reflect changes in accruals made in the current period related to Workforce optimization.

Schedule of Restructuring Liabilities for the Program

The changes in the Company’s liabilities for the Program as of September 30, 2025 are as follows (in millions):

	Technology and other		Workforce optimization		Asset impairments		Total
Liability balance as of December 31, 2024	$	17	$	97	$	—	$	114
Charges	138		91		7		236
Cash payments	(124)		(110)		—		(234)
Foreign currency translation and other	—		5		—		5
Non-cash charges	(7)		(17)		(7)		(31)
Liability balance as of September 30, 2025	$	24	$	66	$	—	$	90
Total costs incurred from inception to date	$	278	$	391	$	91	$	760