Restructuring, Business Transformation and Other Cost Saving Initiatives - Total Charges cost saving initiative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 34.4	$ 70.6	$ 44.0	$ 108.7
Severance Costs | 2022 Cost Saving Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0	60.9	0.0	88.6
Severance Costs | 2022 Cost Saving Initiative | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0	60.9	0.0	88.6
Accelerated Depreciation and Other Costs | 2022 Cost Saving Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	9.7	2.6	20.1
Accelerated Depreciation and Other Costs | 2022 Cost Saving Initiative | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	9.7	2.6	20.1
Workforce Reduction | 2022 Cost Saving Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	70.6	2.6	108.7
Workforce Reduction | 2022 Cost Saving Initiative | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.1	$ 70.6	$ 2.6	$ 108.7