Employee Benefits - Contributions to Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Jan. 02, 2021
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	$ 5	$ 7	$ 15	$ 19	$ 32
Total current year projected employer contributions	25		25
Global Plans | Pension
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	0	1	2	4	8
Total current year projected employer contributions	6		6
U.S. and Canada | Nonpension postretirement
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	5	$ 6	13	$ 15	$ 24
Total current year projected employer contributions	$ 19		$ 19