Segment Information (Operating Business Segment) (Details) $ in Millions	3 Months Ended
	Apr. 02, 2016 USD ($) segment	Apr. 04, 2015 USD ($)
Segment Reporting [Abstract]
Number of segments | segment	2
Segment Reporting Information [Line Items]
Net Sales	$ 1,193	$ 1,223
Business Segments Information
Operating earnings	100	119
Total other income (expense)	(78)	9
Earnings from continuing operations before income taxes	22	128
Products
Segment Reporting Information [Line Items]
Net Sales	702	758
Business Segments Information
Operating earnings	51	64
Services
Segment Reporting Information [Line Items]
Net Sales	491	465
Business Segments Information
Operating earnings	$ 49	$ 55