Receivables - Narrative (Details)	9 Months Ended
	Oct. 02, 2021 portfolioSegment
Financing Receivable, Past Due [Line Items]
Minimum payment term for trade and other accounts receivable (in days)	30 days
Maximum payment term for trade and other accounts receivable (in days)	120 days
Average payment term for finance receivables (in years)	4 years
Maximum payment term for contract receivables (in years)	10 years
Number of portfolio segments	2
Minimum period past due to consider receivable balances as delinquent (in days)	30 days
Minimum period past due to declare receivable as non-accrual status (in days)	90 days
Finance Receivables
Financing Receivable, Past Due [Line Items]
Financing receivable, threshold period past due, writeoff (in days)	120 days
Financing receivable, threshold period after asset repossession, writeoff (in days)	60 days
Contract Receivables | Non-Franchisee
Financing Receivable, Past Due [Line Items]
Financing receivable, threshold period past due, writeoff (in days)	150 days
Contract Receivables | Franchisee
Financing Receivable, Past Due [Line Items]
Financing receivable, threshold period past due, writeoff (in days)	180 days
Financing Receivables And Contract Receivables, Customer Bankruptcy
Financing Receivable, Past Due [Line Items]
Financing receivable, threshold period past due, writeoff (in days)	180 days