Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows – operating activities:
Net loss	$ (2,212)	$ (4,390)
Non-cash items –
Share-based plans expense	548	528
Treasury shares issued for 401(k) contribution	1,204	928
Depreciation and amortization	1,380	1,477
Investment/asset impairment charges, net	12	78
Customer financing valuation adjustments	(4)	39
Gain on dispositions, net	(1)	(2)
Other charges and credits, net	(21)	388
Changes in assets and liabilities –
Accounts receivable	(523)	(22)
Unbilled receivables	(547)	(678)
Advances and progress billings	2,963	204
Inventories	(940)	(1,164)
Other current assets	707	(860)
Accounts payable	982	590
Accrued liabilities	(574)	2,416
Income taxes receivable, payable and deferred	73	1,382
Other long-term liabilities	(254)	(114)
Pension and other postretirement plans	(785)	(1,053)
Customer financing, net	472	76
Other	99	232
Net cash provided by operating activities	2,579	55
Cash flows – investing activities:
Payments to acquire property, plant and equipment	(1,096)	(896)
Proceeds from disposals of property, plant and equipment	19	19
Acquisitions, net of cash acquired	(19)
Contributions to investments	(14,485)	(2,773)
Proceeds from investments	10,497	10,182
Other	(157)	(11)
Net cash (used)/provided by investing activities	(5,241)	6,521
Cash flows – financing activities:
New borrowings	55	19
Debt repayments	(5,181)	(1,038)
Stock options exercised	45	39
Employee taxes on certain share-based payment arrangements	(52)	(36)
Other	2
Net cash used by financing activities	(5,131)	(1,016)
Effect of exchange rate changes on cash and cash equivalents	(22)	(134)
Net (decrease)/increase in cash & cash equivalents, including restricted	(7,815)	5,426
Cash & cash equivalents, including restricted, at beginning of year	14,647	8,104
Cash & cash equivalents, including restricted, at end of period	6,832	13,530
Less restricted cash & cash equivalents, included in Investments	21	36
Cash and cash equivalents at end of period	$ 6,811	$ 13,494