Debt - Debt With A Contractual Term Greater Than One Year (Details) $ in Thousands	Jun. 28, 2020 USD ($)	Jun. 28, 2020 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Jun. 30, 2019 USD ($)
Debt Instrument
Long-term debt	$ 8,674,536		$ 6,872,935		$ 7,046,364
Current portion of long-term debt, net	(2,186,037)		(1,748,109)		(2,396,188)
Long-term debt, net	6,488,499		5,124,826		4,650,176
Secured Debt
Debt Instrument
Less: unamortized discount and debt issuance costs	(11,422)		(2,573)		(3,541)
Long-term debt	3,146,608		1,369,512		1,615,745
Secured Debt | Asset-backed Canadian commercial paper conduit facility
Debt Instrument
Long-term debt, gross	144,661		114,693		148,740
Secured Debt | Asset-backed U.S. commercial paper conduit facilities
Debt Instrument
Long-term debt, gross	540,840		490,427		464,136
Secured Debt | Asset-backed securitization debt
Debt Instrument
Long-term debt, gross	2,472,529		766,965		1,006,410
Medium-term notes
Debt Instrument
Long-term debt, gross	4,784,293		4,760,127		4,687,660
Less: unamortized discount and debt issuance costs	$ (19,332)		(12,809)		(12,340)
Medium-term notes | Due in 2019, issued September 2014
Debt Instrument
Debt instrument, stated percentage	2.40%	2.40%
Long-term debt, gross	$ 0		0		600,000
Medium-term notes | Due in 2020, issued February 2015
Debt Instrument
Debt instrument, stated percentage	2.15%	2.15%
Long-term debt, gross	$ 0		600,000		600,000
Medium-term notes | Due in 2020, issued May 2018
Debt Instrument
Long-term debt, gross	$ 0		450,000		450,000
Medium-term notes | Due in 2020, issued March 2017
Debt Instrument
Debt instrument, stated percentage	2.40%	2.40%
Long-term debt, gross	$ 0		350,000		350,000
Medium-term notes | Due in 2021, issued January 2016
Debt Instrument
Debt instrument, stated percentage	2.85%	2.85%
Long-term debt, gross	$ 600,000		600,000		600,000
Medium-term notes | Due in 2021, issued November 2018
Debt Instrument
Long-term debt, gross	$ 450,000		450,000		450,000
Medium-term notes | Due in 2021, issued May 2018
Debt Instrument
Debt instrument, stated percentage	3.55%	3.55%
Long-term debt, gross	$ 350,000		350,000		350,000
Medium-term notes | Due in 2022, issued February 2019
Debt Instrument
Debt instrument, stated percentage	4.05%	4.05%
Long-term debt, gross	$ 550,000		550,000		550,000
Medium-term notes | Due in 2022, issued June 2017
Debt Instrument
Debt instrument, stated percentage	2.55%	2.55%
Long-term debt, gross	$ 400,000		400,000		400,000
Medium-term notes | Due in 2023, issued February 2018
Debt Instrument
Debt instrument, stated percentage	3.35%	3.35%
Long-term debt, gross	$ 350,000		350,000		350,000
Medium-term notes | Due in 2023, issued May 2020
Debt Instrument
Debt instrument, stated percentage	4.94%	4.94%
Long-term debt, gross	$ 729,885	€ 650,000,000.0	0		0
Medium-term notes | Due in 2024, issued November 2019
Debt Instrument
Debt instrument, stated percentage	3.14%	3.14%
Long-term debt, gross	$ 673,740	€ 600.0	672,936	€ 600.0	0
Medium-term notes | Due in 2025, issued June 2020
Debt Instrument
Debt instrument, stated percentage	3.35%	3.35%
Long-term debt, gross	$ 700,000		0		0
Senior notes
Debt Instrument
Less: unamortized discount and debt issuance costs	(6,365)		(6,704)		(7,041)
Long-term debt	$ 743,635		743,296		742,959
Senior notes | Due in 2025, issued July 2015
Debt Instrument
Debt instrument, stated percentage	3.50%	3.50%
Long-term debt, gross	$ 450,000		450,000		450,000
Senior notes | Due in 2045, issued July 2015
Debt Instrument
Debt instrument, stated percentage	4.625%	4.625%
Long-term debt, gross	$ 300,000		300,000		300,000
Unsecured Debt
Debt Instrument
Long-term debt	$ 5,527,928		$ 5,503,423		$ 5,430,619
Unsecured Debt | Due in 2020, issued May 2018
Debt Instrument
Debt instrument, stated percentage	0.50%	0.50%
Unsecured Debt | Due in 2021, issued November 2018
Debt Instrument
Debt instrument, stated percentage	0.94%	0.94%