Segment Information - Operating Business Segment (Details) $ in Millions	3 Months Ended
	Apr. 01, 2017 USD ($) segment	Apr. 02, 2016 USD ($)
Segment Reporting [Abstract]
Number of segments | segment	2
Segment Reporting Information [Line Items]
Net Sales	$ 1,281	$ 1,193
Business Segments Information
Operating earnings	176	100
Total other expense	(56)	(78)
Net earnings before income taxes	120	22
Products
Segment Reporting Information [Line Items]
Net Sales	703	702
Business Segments Information
Operating earnings	89	51
Services
Segment Reporting Information [Line Items]
Net Sales	578	491
Business Segments Information
Operating earnings	$ 87	$ 49