Reorganization of Business - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021 USD ($) employee	Sep. 26, 2020 USD ($)	Oct. 02, 2021 USD ($) employee	Sep. 26, 2020 USD ($)	Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Reorganization of business charges	$ 4	$ 13	$ 29	$ 72
Reversal of accruals	2	3	$ 7	13
Restructuring charges in the period for total employee severance (in number of employees) | employee			500
Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6	16	$ 36	85
Reversal of accruals			7
Restructuring reserve	$ 38		38		$ 79
Payments for Restructuring			$ (70)
Number of employees expected to be paid (in number of employees) | employee	800		800
Other charges
Restructuring Cost and Reserve [Line Items]
Reorganization of business charges	$ 2	10	$ 22	48
Costs of sales
Restructuring Cost and Reserve [Line Items]
Reorganization of business charges	$ 2	$ 3	$ 7	$ 24