Derivative Instruments and Hedging Activities - Gain Loss On Derivative Cash Flow Hedges Recognized In OCI (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Derivative Instruments, Gain (Loss)
Costs and expenses	$ 979,266	$ 993,036	$ 1,827,464	$ 1,883,210
Interest expense	7,784	7,728	15,515	15,418
Financial Services interest expense	52,673	51,943	104,997	100,393
Expected to be reclassified over the next twelve months			(3,200)
Designated as Hedging Instrument \| Cash Flow Hedging
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	(8,791)		(7,614)
Amount of Gain/(Loss) Recognized in OCI, before tax		31,794		25,888
Amount of Gain/(Loss) Reclassified from AOCL into Income	6,708		8,423
Amount of Gain/(Loss) Reclassified from AOCL into Income		530		(6,378)
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign currency contracts
Derivative Instruments, Gain (Loss)
Costs and expenses	979,266	993,036	1,827,464	1,883,210
Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity contracts
Derivative Instruments, Gain (Loss)
Costs and expenses	979,266	993,036	1,827,464	1,883,210
Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury rate locks
Derivative Instruments, Gain (Loss)
Interest expense	7,784	7,728	15,515	15,418
Financial Services interest expense	52,673	51,943	104,997	100,393
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest rate swaps
Derivative Instruments, Gain (Loss)
Financial Services interest expense	52,673	51,943	104,997	100,393
Motorcycle, Cost of Goods Sold \| Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign currency contracts
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	(2,865)		1,287
Amount of Gain/(Loss) Recognized in OCI, before tax		32,635		26,745
Amount of Gain/(Loss) Reclassified from AOCL into Income	7,668		10,121
Amount of Gain/(Loss) Reclassified from AOCL into Income		956		(5,753)
Motorcycle, Cost of Goods Sold \| Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity contracts
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	(70)		(40)
Amount of Gain/(Loss) Recognized in OCI, before tax		4		(12)
Amount of Gain/(Loss) Reclassified from AOCL into Income	(7)		(17)
Amount of Gain/(Loss) Reclassified from AOCL into Income		(12)		(85)
Interest Expense \| Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury rate locks
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	0		0
Amount of Gain/(Loss) Recognized in OCI, before tax		0		0
Amount of Gain/(Loss) Reclassified from AOCL into Income	(91)		(181)
Amount of Gain/(Loss) Reclassified from AOCL into Income		(91)		(181)
Interest rate cap \| Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury rate locks
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	0		0
Amount of Gain/(Loss) Recognized in OCI, before tax		41		41
Amount of Gain/(Loss) Reclassified from AOCL into Income	(32)		(64)
Amount of Gain/(Loss) Reclassified from AOCL into Income		(34)		(70)
Interest rate cap \| Designated as Hedging Instrument \| Cash Flow Hedging \| Interest rate swaps
Derivative Instruments, Gain (Loss)
Amount of Gain/(Loss) Recognized in OCI, before tax	(5,856)		(8,861)
Amount of Gain/(Loss) Recognized in OCI, before tax		(886)		(886)
Amount of Gain/(Loss) Reclassified from AOCL into Income	$ (830)		$ (1,436)
Amount of Gain/(Loss) Reclassified from AOCL into Income		$ (289)		$ (289)

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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