SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2023

Stockholders' Equity Note [Abstract]

Activity included in accumulated other comprehensive loss table

The following table represents the activity included in accumulated other comprehensive loss:

	Foreign Currency Translation		Cash Flow Hedges		Pension and Postretirement Benefits		Total
Accumulated Other Comprehensive Loss	($ in millions)
Balance at January 1, 2021	$	19.4	$	21.4	$	(730.7)	$	(689.9)
Unrealized (losses) gains	(30.3)		182.0		249.7		401.4
Reclassification adjustments of (gains) losses into income	—		(180.1)		54.3		(125.8)
Tax provision	—		(0.5)		(73.2)		(73.7)
Net change	(30.3)		1.4		230.8		201.9
Balance at December 31, 2021	(10.9)		22.8		(499.9)		(488.0)
Unrealized (losses) gains	(27.7)		(15.6)		72.1		28.8
Reclassification adjustments of (gains) losses into income	—		(58.2)		35.5		(22.7)
Tax benefit (provision)	—		18.5		(32.5)		(14.0)
Net change	(27.7)		(55.3)		75.1		(7.9)
Balance at December 31, 2022	(38.6)		(32.5)		(424.8)		(495.9)
Unrealized losses	(1.1)		(53.6)		(18.1)		(72.8)
Reclassification adjustments of losses into income	—		72.5		0.2		72.7
Tax (provision) benefit	—		(4.8)		4.5		(0.3)
Net change	(1.1)		14.1		(13.4)		(0.4)
Balance at December 31, 2023	$	(39.7)	$	(18.4)	$	(438.2)	$	(496.3)