Disposition of Subsidiaries	6 Months Ended
	Jun. 30, 2023
Disposition of Subsidiaries [Abstract]
Disposition of Subsidiaries	Disposition of SubsidiariesIn April 2023, we disposed of certain research businesses included in our Execution & Support discipline. As a result, we recorded a pretax gain of $78.8 million. The disposition will not have a material impact on our ongoing results of operations or financial position.