Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net earnings	$ 1,654	$ 1,901
Adjustments to reconcile to net cash provided by (used in) operating activities:
Depreciation and amortization	621	633
Stock-based compensation	47	42
Deferred income taxes	(423)	(399)
Net periodic pension and OPB income	(154)	(597)
Pension and OPB contributions	(75)	(71)
Changes in assets and liabilities:
Accounts receivable, net	(591)	(920)
Unbilled receivables, net	110	(719)
Inventoried costs, net	(331)	(98)
Prepaid expenses and other assets	66	114
Accounts payable and other liabilities	(1,043)	(724)
Income taxes payable, net	285	86
Other operating activities, net	51	67
Net cash provided by (used in) operating activities	217	(685)
Investing activities
Capital expenditures	(613)	(507)
Other investing activities, net	1	39
Net cash used in investing activities	(612)	(468)
Financing activities
Net proceeds from issuance of long-term debt	1,995	0
Net borrowings on commercial paper	768	0
Common stock repurchases	(931)	(640)
Cash dividends paid	(554)	(519)
Payments of employee taxes withheld from share-based awards	(50)	(48)
Other financing activities, net	(26)	(1)
Net cash provided by (used in) financing activities	1,202	(1,208)
Increase (decrease) in cash and cash equivalents	807	(2,361)
Cash and cash equivalents, beginning of year	2,577	3,530
Cash and Cash Equivalents, at Carrying Value	$ 3,384	$ 1,169