Revenue Recognition, Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Abstract]
Net sales	$ 472.9	$ 473.4	$ 500.2	$ 529.0	$ 556.7	$ 541.0	$ 548.9	$ 566.1	$ 1,975.5	$ 2,212.7	$ 2,103.1
Contract with Customer, Asset and Liability [Abstract]
Contract assets	21.7				22.6				21.7	22.6
Contract liabilities	$ 5.6				$ 4.0				5.6	4.0
Decrease in contract assets									(0.9)
Increase in contract liabilities									1.6
Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales									508.8	542.8	526.0
Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales									323.7	387.6	381.7
Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales									253.9	314.1	271.2
Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales									639.7	674.0	648.3
Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									150.2	187.0	137.6
Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									43.5	47.8	67.6
Other [Member]
Disaggregation of Revenue [Abstract]
Net sales									55.7	59.4	70.7
VTS [Member]
Disaggregation of Revenue [Abstract]
Net sales									1,177.2	1,351.7	1,295.7
VTS [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									1,146.4	1,308.5
VTS [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									30.8	43.2
VTS [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales									554.4	613.7
VTS [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales									449.3	538.2
VTS [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales									173.5	199.8
VTS [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales									508.8	542.8
VTS [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales									323.7	387.6
VTS [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales									253.9	314.1
VTS [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
VTS [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
VTS [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
VTS [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales									90.8	107.2
CIS [Member]
Disaggregation of Revenue [Abstract]
Net sales									623.9	707.6	675.7
CIS [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									518.2	571.1
CIS [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									105.7	136.5
CIS [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales									345.9	413.6
CIS [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales									232.6	244.8
CIS [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales									45.4	49.2
CIS [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
CIS [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
CIS [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
CIS [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales									463.1	506.3
CIS [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									107.5	145.7
CIS [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									43.5	47.8
CIS [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales									9.8	7.8
BHVAC [Member]
Disaggregation of Revenue [Abstract]
Net sales									221.1	212.4	191.2
BHVAC [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									221.1	212.4
BHVAC [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales									139.1	124.9
BHVAC [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales									82.0	87.5
BHVAC [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales									176.6	167.7
BHVAC [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									42.7	41.3
BHVAC [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									0.0	0.0
BHVAC [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales									1.8	3.4
Total Segments [Member]
Disaggregation of Revenue [Abstract]
Net sales									2,022.2	2,271.7	$ 2,162.6
Total Segments [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									1,885.7	2,092.0
Total Segments [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales									136.5	179.7
Total Segments [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales									1,039.4	1,152.2
Total Segments [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales									763.9	870.5
Total Segments [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales									218.9	249.0
Total Segments [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales									508.8	542.8
Total Segments [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales									323.7	387.6
Total Segments [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales									253.9	314.1
Total Segments [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales									639.7	674.0
Total Segments [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									150.2	187.0
Total Segments [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales									43.5	47.8
Total Segments [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales									$ 102.4	$ 118.4