Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows – operating activities:
Net loss	$ (2,242)	$ (5,053)	$ (4,290)
Non-cash items –
Share-based plans expense	690	725	833
Treasury shares issued for 401(k) contribution	1,515	1,215	1,233
Depreciation and amortization	1,861	1,979	2,144
Investment/asset impairment charges, net	46	112	98
Gain on dispositions, net	(2)	(6)	(277)
787 reach-forward loss			3,460
Other charges and credits, net	3	401	360
Changes in assets and liabilities –
Accounts receivable	(128)	142	(713)
Unbilled receivables	321	6	(586)
Advances and progress billings	3,365	108	2,505
Inventories	(1,681)	420	(1,127)
Other current assets	389	(591)	345
Accounts payable	1,672	838	(3,783)
Accrued liabilities	779	2,956	(3,687)
Income taxes receivable, payable and deferred	44	1,347	733
Other long-term liabilities	(313)	(158)	(206)
Pension and other postretirement plans	(1,049)	(1,378)	(972)
Financing receivables and operating lease equipment, net	571	142	210
Other	119	307	304
Net cash provided/(used) by operating activities	5,960	3,512	(3,416)
Cash flows – investing activities:
Payments to acquire property, plant and equipment	(1,527)	(1,222)	(980)
Proceeds from disposals of property, plant and equipment	27	35	529
Acquisitions, net of cash acquired	(70)		(6)
Contributions to investments	(16,448)	(5,051)	(35,713)
Proceeds from investments	15,739	10,619	45,489
Other	(158)	(11)	5
Net cash (used)/provided by investing activities	(2,437)	4,370	9,324
Cash flows – financing activities:
New borrowings	75	34	9,795
Debt repayments	(5,216)	(1,310)	(15,371)
Stock options exercised	45	50	42
Employee taxes on certain share-based payment arrangements	(408)	(40)	(66)
Other	17
Net cash used by financing activities	(5,487)	(1,266)	(5,600)
Effect of exchange rate changes on cash and cash equivalents	30	(73)	(39)
Net (decrease)/increase in cash & cash equivalents, including restricted	(1,934)	6,543	269
Cash & cash equivalents, including restricted, at beginning of year	14,647	8,104	7,835
Cash & cash equivalents, including restricted, at end of year	12,713	14,647	8,104
Less restricted cash & cash equivalents, included in Investments	22	33	52
Cash and cash equivalents	$ 12,691	$ 14,614	$ 8,052