Finance Receivables - Recorded Investment in Retail Finance Receivables, by Credit Quality Indicator (Details) - USD ($)	Mar. 29, 2020	Dec. 31, 2019	Mar. 31, 2019
Financing Receivable, Allowance for Credit Losses
Total	$ 7,627,903,000	$ 7,572,947,000	$ 7,629,464,000
Retail
Financing Receivable, Allowance for Credit Losses
2020	595,925,000
2019	2,365,794,000
2018	1,549,925,000
2017	904,271,000
2016	527,271,000
2015 & Prior	326,061,000
Total	6,269,247,000	6,416,428,000	6,290,036,000
Retail | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2020	578,370,000
2019	2,284,599,000
2018	1,496,101,000
2017	872,296,000
2016	511,236,000
2015 & Prior	316,386,000
Total	6,058,988,000
Retail | CANADA
Financing Receivable, Allowance for Credit Losses
2020	17,555,000
2019	81,195,000
2018	53,824,000
2017	31,975,000
2016	16,035,000
2015 & Prior	9,675,000
Total	210,259,000
Retail | Super prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2020	204,937,000
2019	825,176,000
2018	539,296,000
2017	275,621,000
2016	140,284,000
2015 & Prior	62,924,000
Total	2,048,238,000
Retail | Super prime | CANADA
Financing Receivable, Allowance for Credit Losses
2020	12,819,000
2019	61,889,000
2018	39,516,000
2017	22,186,000
2016	10,565,000
2015 & Prior	4,989,000
Total	151,964,000
Retail | Prime
Financing Receivable, Allowance for Credit Losses
Total		5,278,093,000	5,160,942,000
Retail | Prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2020	265,365,000
2019	1,065,132,000
2018	717,234,000
2017	441,284,000
2016	262,421,000
2015 & Prior	155,338,000
Total	2,906,774,000
Retail | Prime | CANADA
Financing Receivable, Allowance for Credit Losses
2020	3,968,000
2019	16,479,000
2018	12,389,000
2017	8,441,000
2016	4,549,000
2015 & Prior	3,929,000
Total	49,755,000
Retail | Sub-prime
Financing Receivable, Allowance for Credit Losses
Total		$ 1,138,335,000	$ 1,129,094,000
Retail | Sub-prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2020	108,068,000
2019	394,291,000
2018	239,571,000
2017	155,391,000
2016	108,531,000
2015 & Prior	98,124,000
Total	1,103,976,000
Retail | Sub-prime | CANADA
Financing Receivable, Allowance for Credit Losses
2020	768,000
2019	2,827,000
2018	1,919,000
2017	1,348,000
2016	921,000
2015 & Prior	757,000
Total	$ 8,540,000