Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Apr. 02, 2017	Apr. 03, 2016
Cash flows from operating activities - continuing operations:
Net earnings		$ 763	$ 641
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation of property, plant and equipment		92	89
Amortization of intangible assets		19	27
Equity-based compensation expense		22	27
Deferred income tax provision (benefit)		45	(18)
Discontinued operations		0	13
(Increase) decrease in assets, net of effects of business acquisitions:
Accounts receivable		(84)	(210)
Unbilled receivables		(338)	(276)
Inventories		2	(221)
Increase (decrease) in liabilities, net of effects of business acquisitions:
Accounts payable		(72)	179
Customer advances and deposits		(95)	(18)
Income taxes payable		202	253
Other current liabilities		(76)	(52)
Other, net		53	46
Net cash provided by operating activities	[1]	533	480
Cash flows from investing activities:
Capital expenditures		(62)	(65)
Other, net		(23)	(53)
Net cash used by investing activities		(85)	(118)
Cash flows from financing activities:
Purchases of common stock		(354)	(1,026)
Dividends paid		(230)	(215)
Other, net		(22)	7
Net cash used by financing activities		(606)	(1,234)
Net cash used by discontinued operations		(8)	(6)
Net decrease in cash and equivalents		(166)	(878)
Cash and equivalents at beginning of period		2,334	2,785
Cash and equivalents at end of period		2,168	1,907
Cash payments for:
Total income tax (refunds) payments		(4)	21
Total interest payments		$ 20	$ 16

[1] * Continuing operations only