Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jul. 03, 2016	Jul. 05, 2015
Cash flows from operating activities - continuing operations:
Net earnings		$ 1,475	$ 1,468
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation of property, plant and equipment		182	184
Amortization of intangible assets		50	59
Equity-based compensation expense		51	71
Deferred income tax provision		62	21
Discontinued operations		13	0
(Increase) decrease in assets, net of effects of business acquisitions:
Accounts receivable		(83)	455
Contracts in process		(619)	330
Inventories		(150)	(149)
Increase (decrease) in liabilities, net of effects of business acquisitions:
Accounts payable		157	222
Customer advances and deposits		(423)	(1,252)
Other, net		158	24
Net cash provided by operating activities	[1]	873	1,433
Cash flows from investing activities:
Capital expenditures		(134)	(190)
Maturities of held-to-maturity securities		0	500
Proceeds from sales of assets		4	259
Other, net		(55)	(18)
Net cash (used) provided by investing activities		(185)	551
Cash flows from financing activities:
Purchases of common stock		(1,189)	(1,565)
Dividends paid		(447)	(432)
Proceeds from stock option exercises		92	198
Repayment of fixed-rate notes		0	(500)
Other, net		4	(25)
Net cash used by financing activities		(1,540)	(2,324)
Net cash used by discontinued operations		(34)	(16)
Net decrease in cash and equivalents		(886)	(356)
Cash and equivalents at beginning of period		2,785	4,388
Cash and equivalents at end of period		1,899	4,032
Cash payments for:
Income taxes		460	530
Interest		$ 42	$ 45

[1] * Continuing operations only