Prior-Period Financial Statements - Consolidated Statement of Earnings (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Apr. 02, 2017	Apr. 03, 2016
New Accounting Pronouncements
Products	$ 4,467	$ 4,582
Services	2,974	2,894
Revenues	7,441	7,476
Products	3,436	3,635
Services	2,489	2,456
General and administrative (G&A)	481	461
Operating costs and expenses, total	6,406	6,552
Operating earnings	1,035	924
Interest, net	(25)	(22)
Other, net	0	10
Earnings from continuing operations before income tax	1,010	912
Provision for income tax, net	247	258
Earnings from continuing operations	763	654
Discontinued operations, net of tax	0	(13)
Net earnings	$ 763	$ 641
Continuing operations	$ 2.53	$ 2.12
Discontinued operations	0.00	(0.04)
Basic	2.53	2.08
Continuing operations	2.48	2.08
Discontinued operations	0.00	(0.04)
Diluted	$ 2.48	$ 2.04
Previously Reported
New Accounting Pronouncements
Products		$ 4,864
Services		2,860
Revenues		7,724
Products		3,784
Services		2,427
General and administrative (G&A)		460
Operating costs and expenses, total		6,671
Operating earnings		1,053
Interest, net		(22)
Other, net		10
Earnings from continuing operations before income tax		1,041
Provision for income tax, net		311
Earnings from continuing operations		730
Discontinued operations, net of tax		(13)
Net earnings		$ 717
Continuing operations		$ 2.37
Discontinued operations		(0.04)
Basic		2.33
Continuing operations		2.34
Discontinued operations		(0.04)
Diluted		$ 2.30
Restatement Adjustment | Accounting Standards Update 2016-09
New Accounting Pronouncements
Products		$ 0
Services		0
Revenues		0
Products		0
Services		0
General and administrative (G&A)		0
Operating costs and expenses, total		0
Operating earnings		0
Interest, net		0
Other, net		0
Earnings from continuing operations before income tax		0
Provision for income tax, net		(15)
Earnings from continuing operations		15
Discontinued operations, net of tax		0
Net earnings		$ 15
Continuing operations		$ 0.05
Discontinued operations		0.00
Basic		0.05
Continuing operations		0.03
Discontinued operations		0.00
Diluted		$ 0.03
Restatement Adjustment | Accounting Standards Update 2014-09
New Accounting Pronouncements
Products		$ (282)
Services		34
Revenues		(248)
Products		(149)
Services		29
General and administrative (G&A)		1
Operating costs and expenses, total		(119)
Operating earnings		(129)
Interest, net		0
Other, net		0
Earnings from continuing operations before income tax		(129)
Provision for income tax, net		(38)
Earnings from continuing operations		(91)
Discontinued operations, net of tax		0
Net earnings		$ (91)
Continuing operations		$ (0.30)
Discontinued operations		0.00
Basic		(0.30)
Continuing operations		(0.29)
Discontinued operations		0.00
Diluted		$ (0.29)
Restatement Adjustment | Accounting Standards Update 2015-17
New Accounting Pronouncements
Products		$ 0
Services		0
Revenues		0
Products		0
Services		0
General and administrative (G&A)		0
Operating costs and expenses, total		0
Operating earnings		0
Interest, net		0
Other, net		0
Earnings from continuing operations before income tax		0
Provision for income tax, net		0
Earnings from continuing operations		0
Discontinued operations, net of tax		0
Net earnings		$ 0
Continuing operations		$ 0.00
Discontinued operations		0.00
Basic		0.00
Continuing operations		0.00
Discontinued operations		0.00
Diluted		$ 0.00