Restructuring (Tables)

12 Months Ended

Dec. 31, 2020

Restructuring And Related Activities [Abstract]

Schedule of Change in Balance Sheet Position of Restructuring Reserves

This program is expected to be concluded in 2023.

	December 31		Provision/		Provision/			Cash			Translation		December 31
	2019		Charge		Reversal			payments			difference		2020
Restructuring employee-related	$	55.9	$	108.5	$	(10.1	)	$	(38.4	)	$	9.5	$	125.4
Other		0.2		0.3		—			—			0.0		0.5
Total reserve	$	56.1	$	108.8	$	(10.1	)	$	(38.4	)	$	9.5	$	125.9

The table below summarizes the change in the balance sheet position of the restructuring reserves from December 31, 2018 to December 31, 2019 (dollars in millions).

	December 31		Provision/		Provision/			Cash			Translation			December 31
	2018		Charge		Reversal			payments			difference			2019
Restructuring employee-related	$	33.2	$	56.9	$	(3.0	)	$	(30.3	)	$	(0.9	)	$	55.9
Other		0.2		—		—			—			0.0			0.2
Total reserve	$	33.4	$	56.9	$	(3.0	)	$	(30.3	)	$	(0.9	)	$	56.1

	December 31		Provision/		Provision/			Cash			Translation			December 31
	2017		Charge		Reversal			payments			difference			2018
Restructuring employee-related	$	39.4	$	9.0	$	(0.1	)	$	(13.6	)	$	(1.5	)	$	33.2
Other		0.2		0.2		—			—			(0.2	)		0.2
Total reserve	$	39.6	$	9.2	$	(0.1	)	$	(13.6	)	$	(1.7	)	$	33.4