The following table presents the activity in goodwill by reportable segment:


	December 31, 2023							Activity			March 31, 2024
	Goodwill		Accumulated Impairment Losses			Total		Foreign Exchange and Other			Goodwill		Accumulated Impairment Losses			Total
CCS	$	2,291.0	$	(150.6	)	$	2,140.4	$	(10.0	)	$	2,281.0	$	(150.6	)	$	2,130.4
OWN		662.7		(159.5	)		503.2		(2.4	)		660.3		(159.5	)		500.8
NICS		650.6		(41.2	)		609.4		(1.4	)		649.2		(41.2	)		608.0
ANS		1,995.4		(1,734.0	)		261.4		(0.2	)		1,995.2		(1,734.0	)		261.2
Total	$	5,599.7	$	(2,085.3	)	$	3,514.4	$	(14.0	)	$	5,585.7	$	(2,085.3	)	$	3,500.4

Goodwill at December 31, 2023 reflects the reorganization of the Company's segment structure, as disclosed in Note 1. As a result of the new segment structure and certain other intrasegment realignments, as of January 1, 2024, the Company assessed goodwill for impairment due to changes in the composition of certain reporting units. The Company performed impairment testing immediately before the change and after the change once goodwill was reallocated and determined that no goodwill impairment existed.