Acquisitions and Divestitures, Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	Jun. 29, 2018	Jun. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Discontinued Operations, Income Statement Disclosures [Abstract]
Net Sales				$ 10
Gain on sale of businesses	$ 48	$ 0	$ 48	0
Income from discontinued operations, net of income taxes	190	12	206	23
Discontinued Operation, Balance Sheet Disclosures [Abstract]
Total assets of discontinued operations	0		0		$ 285	$ 306
Current liabilities	0		0		$ 203	226
Vertex Aerospace [Member] | Discontinued Operations [Member]
Discontinued Operations, Income Statement Disclosures [Abstract]
Net Sales	226	351	597	703
Operating costs and expenses (1)	(212)	(332)	(561)	(667)
Operating income from discontinued operations	14	19	36	36
Interest expense allocated to discontinued operations	0	0	(1)	(1)
Gain on sale of businesses	237	0	237	0
Income from discontinued operations before income taxes	251	19	272	35
Income tax expense	(61)	(7)	(66)	(12)
Income from discontinued operations, net of income taxes	$ 190	$ 12	$ 206	$ 23
Discontinued Operation, Balance Sheet Disclosures [Abstract]
Current assets						284
Property, plant and equipment, net						13
Other intangible assets						7
Other assets						2
Total assets of discontinued operations						306
Accounts payable, trade						63
Other current liabilities						131
Other current liabilities						194
Long-term liabilities						32
Current liabilities						$ 226