Revenue Recognition - Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 2,117.2	$ 1,511.8	$ 4,068.3	$ 2,917.0
ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	1,314.3	952.9	2,546.5	1,776.6
Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	211.7	141.3	377.3	267.9
Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	154.1	77.9	278.9	176.2
Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	239.5	207.5	469.3	409.6
Boats
Disaggregation of Revenue [Line Items]
Revenue	197.6	132.2	396.3	286.7
Wholegoods
Disaggregation of Revenue [Line Items]
Revenue	1,533.8	1,050.2	2,933.0	2,036.6
Wholegoods | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	1,032.9	737.3	1,995.7	1,382.0
Wholegoods | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	177.7	118.3	318.1	228.1
Wholegoods | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	125.6	62.4	222.9	139.8
Wholegoods | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
Wholegoods | Boats
Disaggregation of Revenue [Line Items]
Revenue	197.6	132.2	396.3	286.7
PG&A
Disaggregation of Revenue [Line Items]
Revenue	583.4	461.6	1,135.3	880.4
PG&A | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	281.4	215.6	550.8	394.6
PG&A | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	34.0	23.0	59.2	39.8
PG&A | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	28.5	15.5	56.0	36.4
PG&A | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	239.5	207.5	469.3	409.6
PG&A | Boats
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue	1,656.3	1,253.4	3,185.2	2,407.8
UNITED STATES | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	1,029.3	795.6	1,990.6	1,478.3
UNITED STATES | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	130.5	90.2	228.7	168.0
UNITED STATES | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	76.0	39.1	132.2	87.6
UNITED STATES | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	229.3	198.8	449.1	392.8
UNITED STATES | Boats
Disaggregation of Revenue [Line Items]
Revenue	191.2	129.7	384.6	281.1
CANADA
Disaggregation of Revenue [Line Items]
Revenue	149.9	68.3	284.0	137.6
CANADA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	123.0	52.8	235.0	104.8
CANADA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	9.8	4.2	15.6	8.8
CANADA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	0.7	0.1	1.7	1.6
CANADA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	10.2	8.7	20.2	16.8
CANADA | Boats
Disaggregation of Revenue [Line Items]
Revenue	6.2	2.5	11.5	5.6
EMEA
Disaggregation of Revenue [Line Items]
Revenue	211.8	126.5	430.4	265.6
EMEA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	92.7	62.8	202.6	124.8
EMEA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	44.1	26.5	87.2	55.9
EMEA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	74.8	37.2	140.4	84.9
EMEA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
EMEA | Boats
Disaggregation of Revenue [Line Items]
Revenue	0.2	0.0	0.2	0.0
APLA
Disaggregation of Revenue [Line Items]
Revenue	99.2	63.6	168.7	106.0
APLA | ORV/Snowmobiles
Disaggregation of Revenue [Line Items]
Revenue	69.3	41.7	118.3	68.7
APLA | Motorcycles
Disaggregation of Revenue [Line Items]
Revenue	27.3	20.4	45.8	35.2
APLA | Global Adjacent Markets
Disaggregation of Revenue [Line Items]
Revenue	2.6	1.5	4.6	2.1
APLA | Aftermarket
Disaggregation of Revenue [Line Items]
Revenue	0.0	0.0	0.0	0.0
APLA | Boats
Disaggregation of Revenue [Line Items]
Revenue	$ 0.0	$ 0.0	$ 0.0	$ 0.0