Accumulated other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2023

The following table sets forth the changes in AOCI by component during the years ended December 31, 2023, 2022 and 2021:


(in millions)	Foreign Currency Translation Gain (Loss)		Net Actuarial Gain and Prior Service Cost		Amortization of Gain on Interest Rate Swap		Net Gain (Loss) on Marketable Securities Held in Trust		Total
Balance at December 31, 2020	$	(1,719.1)	$	(109.7)	$	3.7	$	18.9	(1,806.2)
Other comprehensive income (loss)	(117.0)		56.5		2.0		(22.7)		(81.2)
Tax (expense) or benefit	8.8		(19.6)		(0.5)		5.1		(6.2)
Other comprehensive income (loss), net of tax	(108.2)		36.9		1.5		(17.6)		(87.4)
Addback: loss attributable to noncontrolling interest	1.8		—		—		—		1.8
Balance at December 31, 2021	$	(1,825.5)	$	(72.8)	$	5.2	$	1.3	$	(1,891.8)
Other comprehensive income (loss)	(261.1)		28.6		2.0		(32.4)		(262.9)
Tax (expense) or benefit	6.1		(8.9)		(0.5)		7.6		4.3
Other comprehensive income (loss), net of tax	(255.0)		19.7		1.5		(24.8)		(258.6)
Less: gain attributable to noncontrolling interest	(1.8)		—		—		—		(1.8)
Balance at December 31, 2022	$	(2,082.3)	$	(53.1)	$	6.7	$	(23.5)	$	(2,152.2)
Other comprehensive income (loss)	152.0		31.1		1.8		30.6		215.5
Tax (expense) or benefit	2.1		(11.0)		(0.4)		(6.9)		(16.2)
Other comprehensive income (loss), net of tax	154.1		20.1		1.4		23.7		199.3
Less: gain attributable to noncontrolling interest	(2.0)		—		—		—		(2.0)
Balance at December 31, 2023	$	(1,930.2)	$	(33.0)	$	8.1	$	0.2	$	(1,954.9)