Segment and Geographic Data - Selected financial information by geographic area (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Revenues from External Customers and Long-Lived Assets
Revenues	$ 3,825	$ 3,251	$ 3,511	$ 3,201	$ 3,923	$ 3,180	$ 3,247	$ 3,073	$ 13,788	$ 13,423	$ 13,878
Property, plant and equipment, net	2,581				2,492				2,581	2,492
United States
Revenues from External Customers and Long-Lived Assets
Revenues									8,574	8,299	8,677
Property, plant and equipment, net	2,116				2,039				2,116	2,039
Europe
Revenues from External Customers and Long-Lived Assets
Revenues									1,954	1,730	1,761
Property, plant and equipment, net	247				251				247	251
Asia and Australia
Revenues from External Customers and Long-Lived Assets
Revenues									998	1,324	1,155
Property, plant and equipment, net	78				72				78	72
Latin and South America
Revenues from External Customers and Long-Lived Assets
Revenues									977	1,101	1,261
Property, plant and equipment, net	68				51				68	51
Canada
Revenues from External Customers and Long-Lived Assets
Revenues									652	531	383
Property, plant and equipment, net	$ 72				$ 79				72	79
Middle East and Africa
Revenues from External Customers and Long-Lived Assets
Revenues									$ 633	$ 438	$ 641