Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Cash flows from operating activities - continuing operations:
Net earnings	$ 706	$ 745
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation of property, plant and equipment	122	114
Amortization of intangible and finance lease right-of-use assets	90	91
Equity-based compensation expense	30	40
Deferred income tax benefit	(28)	(10)
(Increase) decrease in assets, net of effects of business acquisitions:
Accounts receivable	(33)	49
Unbilled receivables	(78)	(873)
Inventories	(546)	(210)
Increase (decrease) in liabilities, net of effects of business acquisitions:
Accounts payable	(375)	(167)
Customer advances and deposits	(373)	(623)
Other, net	(181)	49
Net cash used by operating activities	(666)	(795)
Cash flows from investing activities:
Capital expenditures	(185)	(181)
Other, net	8	(6)
Net cash used by investing activities	(177)	(187)
Cash flows from financing activities:
Proceeds from fixed-rate notes	3,960	0
Proceeds from commercial paper, net	2,271	1,010
Purchases of common stock	(449)	(133)
Dividends paid	(295)	(268)
Other, net	(202)	88
Net cash provided by financing activities	5,285	697
Net cash used by discontinued operations	(14)	(5)
Net increase (decrease) in cash and equivalents	4,428	(290)
Cash and equivalents at beginning of period	902	963
Cash and equivalents at end of period	5,330	673
Supplemental cash flow information:
Income tax payments, net	(43)	(37)
Interest payments	$ (66)	$ (48)