Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net earnings	$ 4,174	$ 2,056	$ 4,896
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	1,370	1,338	1,342
Mark-to-market pension and OPB (benefit) expense	(443)	422	(1,232)
Stock-based compensation	101	87	99
Deferred income taxes	(582)	(988)	(321)
B-21 Charge	0	1,559	0
Net periodic pension and OPB income	(438)	(308)	(1,193)
Pension and OPB contributions	(129)	(139)	(136)
Changes in assets and liabilities:
Accounts receivable, net	182	54	(44)
Unbilled receivables, net	(215)	247	(646)
Inventoried costs, net	(358)	(220)	(205)
Prepaid expenses and other assets	35	(86)	2
Accounts payable and other liabilities	(513)	519	572
Income taxes payable, net	1,143	(658)	(279)
Other, net	61	(8)	46
Net cash provided by operating activities	4,388	3,875	2,901
Investing activities
Capital expenditures	(1,767)	(1,775)	(1,435)
Proceeds from sale of equipment to a customer	0	0	155
Proceeds from Sale, Maturity and Collection of Investments	0	197	0
Other, net	18	(4)	39
Net cash used in investing activities	(1,749)	(1,582)	(1,241)
Financing activities
Net proceeds from issuance of long-term debt	2,495	1,995	0
Payments of long-term debt	0	(1,050)	0
Common stock repurchases	(2,514)	(1,500)	(1,504)
Cash dividends paid	(1,186)	(1,116)	(1,052)
Payments of employee taxes withheld from share-based awards	(58)	(52)	(50)
Other, net	(132)	(38)	(7)
Net cash used in financing activities	(1,395)	(1,761)	(2,613)
Increase (decrease) in cash and cash equivalents	1,244	532	(953)
Cash and cash equivalents, beginning of year	3,109	2,577	3,530
Cash and cash equivalents, end of period	$ 4,353	$ 3,109	$ 2,577