Finance Receivables - Allowance For Credit Losses And Finance Receivables By Portfolio Individually And Collectively Evaluated For Impairment (Details) - USD ($) $ in Thousands	Sep. 29, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses
Individually evaluated for impairment	$ 0		$ 0	$ 0
Collectively evaluated for impairment	198,576		189,885	193,447
Total allowance for credit losses	198,576	$ 194,996	189,885	193,447	$ 193,930	$ 192,471
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	7,714,156		7,411,816	7,497,009
Total Finance Receivables	7,714,156		7,411,816	7,497,009
Retail
Financing Receivable, Allowance for Credit Losses
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	191,626		182,098	187,126
Total allowance for credit losses	191,626	186,722	182,098	187,126	187,502	186,254
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	6,642,809		6,328,201	6,508,670
Total Finance Receivables	6,642,809		6,328,201	6,508,670
Wholesale
Financing Receivable, Allowance for Credit Losses
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	6,950		7,787	6,321
Total allowance for credit losses	6,950	$ 8,274	7,787	6,321	$ 6,428	$ 6,217
Individually evaluated for impairment	0		0	0
Collectively evaluated for impairment	1,071,347		1,083,615	988,339
Total Finance Receivables	$ 1,071,347		$ 1,083,615	$ 988,339

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount, before allowance for credit loss, of financing receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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