Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2019	Jul. 01, 2018
Cash flows from operating activities - continuing operations:
Net earnings		$ 1,551	$ 1,585
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation of property, plant and equipment		232	206
Amortization of intangible and finance lease right-of-use assets		183	121
Equity-based compensation expense		72	71
Deferred income tax benefit		(17)	(6)
(Increase) decrease in assets, net of effects of business acquisitions:
Accounts receivable		64	344
Unbilled receivables		(1,074)	(1,030)
Inventories		(556)	(542)
Increase (decrease) in liabilities, net of effects of business acquisitions:
Accounts payable		(301)	(324)
Customer advances and deposits		(607)	(159)
Other, net		(51)	25
Net cash (used) provided by operating activities	[1]	(504)	291
Cash flows from investing activities:
Capital expenditures		(362)	(279)
Business acquisitions, net of cash acquired		(17)	(10,039)
Other, net		16	74
Net cash used by investing activities		(363)	(10,244)
Cash flows from financing activities:
Proceeds from commercial paper, net		1,394	2,786
Dividends paid		(563)	(526)
Purchases of common stock		(231)	(436)
Proceeds from notes		0	6,461
Repayment of CSRA accounts receivable purchase agreement		0	(450)
Other, net		30	3
Net cash provided by financing activities		630	8,838
Net cash used by discontinued operations		(24)	(6)
Net decrease in cash and equivalents		(261)	(1,121)
Cash and equivalents at beginning of period		963	2,983
Cash and equivalents at end of period		702	1,862
Supplemental cash flow information:
Income tax payments, net		397	155
Interest payments		216	95
Floating-rate notes
Cash flows from financing activities:
Proceeds from notes		$ 0	$ 1,000

[1] * Continuing operations only