Summary of Significant Accounting Policies (Details) $ in Millions		12 Months Ended
	Sep. 26, 2022 USD ($) segment	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property, Plant and Equipment
Number of reportable segments | segment	2	3
Pre-tax gain (loss) from foreign currency remeasurements		$ 26.2	$ 22.0	$ 3.8
Allowance for doubtful accounts receivable		2.9	2.4
Other inventories		425.0	318.5
Research and development expenses		158.6	175.1	202.4
Advertising costs		$ 105.6	$ 107.6	$ 134.6
LiveWire
Property, Plant and Equipment
Proceeds from divestiture of business	$ 294.0
LiveWire
Property, Plant and Equipment
Payments to acquire business	$ 180.0
Equity interest (percent)	89.40%
LiveWire | AEA-Bridges Impact Corp
Property, Plant and Equipment
Payments to acquire business	$ 14.0
Equity interest (percent)	5.70%
LiveWire | Kwang Yang Motor Co., Ltd
Property, Plant and Equipment
Payments to acquire business	$ 100.0
Equity interest (percent)	4.90%
Buildings
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		30 years
Building Equipment and Land Improvements
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		7 years
Machinery and equipment | Minimum
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		3 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		10 years
Software | Minimum
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		3 years
Software | Maximum
Property, Plant and Equipment
Useful lives of property, plant and equipment (in years)		7 years