Revenue Recognition - Cumulative Effect - Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Changes in assets and liabilities, net of acquisitions:
Net earnings	$ 7	$ 59	$ 39	$ 143
Receivables, net of allowance			(10)	28
Inventories			(89)	41
Other current assets			48	(11)
Current liabilities, exclusive of debt			(57)	$ (57)
Balances Without Adoption of Topic 606
Changes in assets and liabilities, net of acquisitions:
Net earnings	$ 7		38
Receivables, net of allowance			10
Inventories			(131)
Other current assets			49
Current liabilities, exclusive of debt			(35)
ASU 2014-09 | Adjustments
Changes in assets and liabilities, net of acquisitions:
Net earnings			1
Receivables, net of allowance			(20)
Inventories			42
Other current assets			(1)
Current liabilities, exclusive of debt			$ (22)