Segment Information (Operating Business Segment) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016 USD ($)	Jul. 04, 2015 USD ($)	Jul. 02, 2016 USD ($) segment	Jul. 04, 2015 USD ($)
Segment Reporting [Abstract]
Number of segments | segment			2
Segment Reporting Information [Line Items]
Net Sales	$ 1,430	$ 1,368	$ 2,623	$ 2,591
Business Segments Information
Operating earnings	224	254	323	373
Total other expense	(57)	(39)	(134)	(30)
Earnings from continuing operations before income taxes	167	215	189	343
Products
Segment Reporting Information [Line Items]
Net Sales	801	867	1,503	1,626
Business Segments Information
Operating earnings	129	171	179	235
Services
Segment Reporting Information [Line Items]
Net Sales	629	501	1,120	965
Business Segments Information
Operating earnings	$ 95	$ 83	$ 144	$ 138