Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Share-based Compensation Expense Recognized in Continuing Operations

The following table summarizes share-based compensation expense recognized in the Consolidated Statements of Income in Compensation and benefits (in millions):

	Years Ended December 31
	2022		2021		2020
Restricted share units	$	251	$	204	$	186
Performance share awards	134		189		116
Employee share purchase plans and other (1)	12		56		10
Total share-based compensation expense	397		449		312
Tax benefit	83		87		61
Share-based compensation expense, net of tax	$	314	$	362	$	251

(1) 2021 includes expenses related to the Aon United Growth Ownership Plan.

Schedule of Restricted Share Unit Activity

The following table summarizes the status of the Company’s RSUs (shares in thousands, except fair value):

	Shares	Fair Value (1)
Non-vested balance at December 31, 2021	3,075	$	203
Granted	1,117	$	279
Vested	(1,154)	$	187
Forfeited	(175)	$	219
Non-vested balance at December 31, 2022	2,863	$	238

(1)Represents per share weighted average fair value of award at date of grant.

Schedule of Performance-based Plans Information

The following table summarizes the status of the Company's PSAs at 100% of the targeted amount (shares in thousands, except fair value):

	Shares	Fair Value (1)
Non-vested balance at December 31, 2021	1,298	$	181
Granted	300	$	311
Vested	(444)	$	163
Forfeited	(18)	$	217
Non-vested balance at December 31, 2022	1,136	$	222

(1)Represents per share weighted average fair value of award at date of grant.