Finance Receivables - Recorded Investment in Retail Finance Receivables, by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 27, 2021	Dec. 31, 2020	Jun. 28, 2020
Financing Receivable, Allowance for Credit Losses
Total	$ 7,247,765	$ 6,833,944	$ 7,391,006
Retail
Financing Receivable, Allowance for Credit Losses
2021	1,874,822
2020	1,959,713	2,467,348	1,476,766
2019	1,334,864	1,730,885	2,147,556
2018	798,627	1,082,250	1,386,111
2017	412,637	591,597	789,762
2016 & Prior	282,855	309,427	447,469
2015 & Prior		162,688	273,255
Total	6,663,518	6,344,195	6,520,919
Retail | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2021	1,821,936
2020	1,898,147	2,392,143	1,428,533
2019	1,283,415	1,665,438	2,071,277
2018	768,401	1,041,840	1,336,846
2017	398,186	569,957	761,276
2016 & Prior	275,692	300,604	434,086
2015 & Prior		158,287	265,782
Total	6,445,777	6,128,269	6,297,800
Retail | CANADA
Financing Receivable, Allowance for Credit Losses
2021	52,886
2020	61,566	75,205	48,233
2019	51,449	65,447	76,279
2018	30,226	40,410	49,265
2017	14,451	21,640	28,486
2016 & Prior	7,163	8,823	13,383
2015 & Prior		4,401	7,473
Total	217,741	215,926	223,119
Retail | Super prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2021	632,627
2020	634,661	822,631	486,327
2019	429,884	575,977	737,419
2018	250,679	355,529	474,280
2017	106,124	165,436	234,239
2016 & Prior	53,347	71,360	114,496
2015 & Prior		29,181	54,661
Total	2,107,322	2,020,114	2,101,422
Retail | Super prime | CANADA
Financing Receivable, Allowance for Credit Losses
2021	38,562
2020	42,967	53,465	34,715
2019	37,461	48,692	57,818
2018	20,709	28,581	35,786
2017	8,625	13,818	19,265
2016 & Prior	3,374	5,018	8,508
2015 & Prior		2,011	3,687
Total	151,698	151,585	159,779
Retail | Prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2021	876,007
2020	911,265	1,133,637	670,363
2019	619,597	794,058	973,046
2018	380,662	508,713	644,846
2017	208,176	293,358	388,039
2016 & Prior	140,807	156,688	223,960
2015 & Prior		77,046	131,367
Total	3,136,514	2,963,500	3,031,621
Retail | Prime | CANADA
Financing Receivable, Allowance for Credit Losses
2021	12,468
2020	15,872	18,568	11,548
2019	11,990	14,257	15,741
2018	8,254	10,269	11,598
2017	5,007	6,727	7,932
2016 & Prior	3,182	3,198	4,093
2015 & Prior		2,025	3,187
Total	56,773	55,044	54,099
Retail | Sub-prime | UNITED STATES
Financing Receivable, Allowance for Credit Losses
2021	313,302
2020	352,221	435,875	271,843
2019	233,934	295,403	360,812
2018	137,060	177,598	217,720
2017	83,886	111,163	138,998
2016 & Prior	81,538	72,556	95,630
2015 & Prior		52,060	79,754
Total	1,201,941	1,144,655	1,164,757
Retail | Sub-prime | CANADA
Financing Receivable, Allowance for Credit Losses
2021	1,856
2020	2,727	3,172	1,970
2019	1,998	2,498	2,720
2018	1,263	1,560	1,881
2017	819	1,095	1,289
2016 & Prior	607	607	782
2015 & Prior		365	599
Total	$ 9,270	$ 9,297	$ 9,241