Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Cash flows from operating activities - continuing operations:
Net earnings	$ 2,165	$ 2,464
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation of property, plant and equipment	376	352
Amortization of intangible and finance lease right-of-use assets	267	273
Equity-based compensation expense	91	103
Deferred income tax benefit	(112)	(72)
(Increase) decrease in assets, net of effects of business acquisitions:
Accounts receivable	(336)	253
Unbilled receivables	(239)	(1,603)
Inventories	(134)	(646)
Increase (decrease) in liabilities, net of effects of business acquisitions:
Accounts payable	(558)	(164)
Customer advances and deposits	(906)	(565)
Increase (Decrease) in Other Current Liabilities	360	191
Other, net	322	1
Net cash provided by operating activities	1,296	587
Cash flows from investing activities:
Capital expenditures	(622)	(606)
Other, net	33	2
Net cash used by investing activities	(589)	(604)
Cash flows from financing activities:
Proceeds from fixed-rate notes	3,960	0
Repayment of notes	(2,000)	0
Dividends paid	(925)	(858)
Purchases of common stock	(501)	(231)
Proceeds from commercial paper, gross (maturities greater than 3 months)	420	0
Repayment of commercial paper, gross (maturities greater than 3 months)	(420)	0
Proceeds from commercial paper	0	947
Other, net	(134)	207
Net cash (used) provided by financing activities	(100)	65
Net cash used by discontinued operations	(40)	(37)
Net increase in cash and equivalents	567	11
Cash and equivalents at beginning of period	902	963
Cash and equivalents at end of period	1,469	974
Supplemental cash flow information:
Income tax payments, net	(345)	(487)
Interest payments	(261)	(271)
Floating-rate notes
Cash flows from financing activities:
Repayment of notes	$ (500)	$ 0