Operating Results Reflected within Earnings from Discontinued Operations, Net of Tax (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 25, 2016		Sep. 27, 2015	Sep. 25, 2016		Sep. 27, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net earnings from discontinued operations		$ 1,306		$ 109	$ 1,520		$ 363
Information Systems & Global Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		739	[1]	1,401	3,410	[1]	4,199
Cost of sales		(635)	[1]	(1,222)	(2,953)	[1]	(3,644)
Severance charges				(20)	(19)	[1]	(20)
Gross profit		104	[1]	159	438	[1]	535
Other income, net		19	[1]	3	16	[1]	8
Operating profit		123	[1]	162	454	[1]	543
Earnings from discontinued operations before income taxes		123	[1]	162	454	[1]	543
Income tax expense		(51)	[1]	(53)	(168)	[1]	(180)
Net gain on divestiture of discontinued operations	[1]	1,234			1,234
Net earnings from discontinued operations		$ 1,306	[1]	$ 109	$ 1,520	[1]	$ 363

[1] Operating results for the quarter and nine months ended September 25, 2016 reflect operating results prior to the transaction date of August 16, 2016, not the full quarter or nine month period as shown for the prior period.