Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2024 and 2023:

(In millions)	Identical Assets (Level 1)				Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				Total
	12/31/24		12/31/23		12/31/24		12/31/23		12/31/24		12/31/23		12/31/24		12/31/23
Assets:
Financial instruments owned:
Exchange traded equity securities (a)	$	7	$	5	$	—	$	—	$	—	$	—	$	7	$	5
Mutual funds (a)	194		178		—		—		—		—		194		178
Unit investment trust (a)	—		—		83		—		—		—		83		—
Money market funds (b)	353		606		—		—		—		—		353		606
Contingent purchase consideration assets (c)	—		—		—		—		—		1		—		1
Total assets measured at fair value	$	554	$	789	$	83	$	—	$	—	$	1	$	637	$	790
Fiduciary Assets:
Money market funds	76		180		—		—		—		—		76		180
Total fiduciary assets measured at fair value	$	76	$	180	$	—	$	—	$	—	$	—	$	76	$	180
Liabilities:
Contingent purchase consideration liabilities (d)	$	—	$	—	$	—	$	—	$	161	$	252	$	161	$	252
Total liabilities measured at fair value	$	—	$	—	$	—	$	—	$	161	$	252	$	161	$	252

(a)Included in other assets in the consolidated balance sheets.

(b)Included in cash and cash equivalents in the consolidated balance sheets.    

(c)Included in other receivables in the consolidated balance sheets.

(d)Included in accounts payable and accrued liabilities and other liabilities in the consolidated balance sheets.

Schedule of Changes in Fair Value of Level 3 Liabilities Representing Acquisition Related Contingent Consideration

The following table sets forth a summary of the changes in fair value of the Company’s Level 3 liabilities for the years ended December 31, 2024 and December 31, 2023.

(In millions)	2024		2023
Balance at January 1,	$	252	$	377
Net additions	64		22
Payments	(166)		(176)
Revaluation impact	15		29
Other (a)	(4)		—
Balance at December 31,	$	161	$	252

(a)Primarily reflects the impact of foreign exchange.