Restructuring (Tables)

6 Months Ended

Jun. 30, 2020

Restructuring And Related Activities [Abstract]

Schedule of Change in Balance Sheet Position of Employee Related Restructuring Reserves

The table below summarizes the change in the balance sheet position of the employee related restructuring reserves (dollars in millions). The changes in the employee-related reserves have been charged against Other income (expense), net in the Consolidated Statements of Income. Restructuring costs other than employee related costs are immaterial for all periods presented.

	Three months ended June 30						Six months ended June 30
	2020			2019			2020			2019
Reserve at beginning of the period	$	52.1		$	28.5		$	56.1		$	33.4
Provision - charge		69.2			12.9			70.9			13.7
Provision - reversal		(7.3	)		—			(7.4	)		(0.1	)
Cash payments		(16.0	)		(1.4	)		(20.4	)		(6.5	)
Translation difference		1.6			0.3			0.4			(0.2	)
Reserve at end of the period	$	99.6		$	40.3		$	99.6		$	40.3