Allowance for Doubtful Accounts (Tables)

12 Months Ended

Dec. 28, 2019

Receivables [Abstract]

Summary of Activity in Allowance for Doubtful Accounts

A summary of the activity in the allowance for doubtful accounts for the last three fiscal years is as follows:

	2019			2018			2017
Balance as of beginning of year	$	29		$	26		$	25
Charged to costs and expenses	21			17			18
Customer accounts written off—net of recoveries	(20		)	(14		)	(17		)
Balance as of end of year	$	30		$	29		$	26