Segment Information & Geographic Data - Geographic Data for Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Segment Reporting Information [Line Items]
Total Net sales	$ 956	$ 1,097	$ 2,008	$ 2,163
North America
Segment Reporting Information [Line Items]
Total Net sales	502	540	1,021	1,050
EMEA
Segment Reporting Information [Line Items]
Total Net sales	306	360	694	736
Asia-Pacific
Segment Reporting Information [Line Items]
Total Net sales	110	141	207	266
Latin America
Segment Reporting Information [Line Items]
Total Net sales	$ 38	$ 56	$ 86	$ 111