Employee Benefits - Contributions to Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Jan. 02, 2021
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	$ 2	$ 6	$ 32
Total current year projected employer contributions	25
Global Plans | Pension
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	1	3	8
Total current year projected employer contributions	6
U.S. and Canada | Nonpension postretirement
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to employee benefit plans	1	$ 3	$ 24
Total current year projected employer contributions	$ 19