Revenue Recognition - Cumulative Effect - Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Revenue - cumulative effect
Total net sales	$ 1,651	$ 1,402	$ 4,921	$ 4,223
Total cost of sales	1,529	1,254	4,511	3,808
Net earnings	34	$ 81	73	$ 224
Balances Without Adoption of Topic 606
Revenue - cumulative effect
Total net sales	1,658		4,899
Total cost of sales	1,534		4,488
Net earnings	36		74
ASU 2014-09 | Adjustments
Revenue - cumulative effect
Total net sales	(7)		22
Total cost of sales	(5)		23
Net earnings	$ (2)		$ (1)