Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating activities
Net earnings	$ 6,920	$ 5,732	$ 6,315
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation and amortization	1,430	1,404	1,364
Stock-based compensation	265	238	227
Deferred income taxes	(498)	(757)	(183)
Pension settlement charge	0	1,470	1,665
Severance and other charges	92	100	36
Changes in:
Receivables, net	373	(542)	15
Contract assets	(865)	(1,739)	(1,034)
Inventories	(44)	(107)	564
Accounts payable	151	1,274	(98)
Contract liabilities	702	381	562
Income taxes	(133)	148	45
Qualified defined benefit pension plans	(378)	(412)	(267)
Other, net	(95)	612	10
Net cash provided by operating activities	7,920	7,802	9,221
Investing activities
Capital expenditures	(1,691)	(1,670)	(1,522)
Other, net	(3)	(119)	361
Net cash used for investing activities	(1,694)	(1,789)	(1,161)
Financing activities
Issuance of long-term debt, net of related costs	1,975	6,211	0
Repayments of long-term debt	(115)	(2,250)	(500)
Repurchases of common stock	(6,000)	(7,900)	(4,087)
Dividends paid	(3,056)	(3,016)	(2,940)
Other, net	(135)	(115)	(89)
Net cash used for financing activities	(7,331)	(7,070)	(7,616)
Net change in cash and cash equivalents	(1,105)	(1,057)	444
Cash and cash equivalents at beginning of year	2,547	3,604	3,160
Cash and cash equivalents at end of year	$ 1,442	$ 2,547	$ 3,604