Consolidated Statements Of Cash Flows $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)		Dec. 31, 2019 USD ($)		Dec. 31, 2018 USD ($)
Cash flows - operation activities:
Net (loss)/earnings	$ (11,941)		$ (636)		$ 10,460
Non-cash items -
Share-based plans expense	250		212		202
Treasury shares issued for 401(k) contribution	195
Depreciation and amortization	2,246		2,271		2,114
Investment/asset impairment charges, net	410		443		93
Customer financing valuation adjustments	12		250		(3)
Gain/(loss) on dispositions, net	(202)		(691)		(75)
777X reach-forward loss	942		111		190
Other charges and credits, net	1,462		334		247
Changes in assets and liabilities –
Accounts receivable	909		603		(795)
Unbilled receivables	919		982		(1,826)
Advances and progress billings	(1,060)		737		2,636
Inventories	(11,002)		(12,391)		568
Other current assets	372		(682)		98
Accounts payable	(5,363)		1,600		2
Accrued liabilities	1,074		7,781		1,117
Income taxes receivable, payable and deferred	(2,576)		(2,476)		(180)
Other long-term liabilities	(222)		(621)		87
Pension and other postretirement plans	(794)		(777)		(153)
Customer financing, net	173		419		120
Other	235		196		610
Net cash (used)/provided by operating activities	(18,410)		(2,446)		15,322
Cash flows - investing activities:
Property, plant and equipment additions	(1,303)		(1,834)		(1,722)
Property, plant and equipment reductions	296		334		120
Acquisitions, net of cash acquired			(455)		(3,230)
Proceeds from dispositions			464
Contributions to investments	(37,616)		(1,658)		(2,607)
Proceeds from investments	20,275		1,759		2,898
Purchase of distribution rights			127		69
Other	(18)		(13)		(11)
Net cash used by investing activities	(18,366)		(1,530)		(4,621)
Cash flows - financing activities
New borrowings	47,248		25,389		8,548
Debt repayments	(10,998)		(12,171)		(7,183)
Contributions from noncontrolling interests			7		35
Stock options exercised	36		58		81
Employee taxes on certain share-based payment arrangements	(173)		(248)		(257)
Common shares repurchased			(2,651)		(9,000)
Dividends paid	(1,158)		(4,630)		(3,946)
Other			(15)
Net Cash Provided by (Used in) Financing Activities, Total	34,955		5,739		(11,722)
Effect of exchange rate changes on cash and cash equivalents	85		(5)		(53)
Net (decrease)/increase in cash & cash equivalents, including restricted	(1,736)		1,758		(1,074)
Cash & cash equivalents, including restricted, at beginning of year	9,571		7,813		8,887
Cash & cash equivalents, including restricted, at end of year	7,835		9,571		7,813
Less restricted cash & cash equivalents, included in Investments	(83)	[1]	(86)	[1]	(176)
Cash and cash equivalents at end of year	7,752		$ 9,485		$ 7,637
Airplane Program 777x [Member]
Non-cash items -
777X reach-forward loss	$ 6,493

[1] Reflects amounts restricted in support of our workers’ compensation programs, employee benefit programs, and insurance premiums.Allowance for losses on available for sale debt instruments are assessed quarterly. All instruments are considered investment grade and, as such, we have not recognized an allowance for credit losses as of December 31, 2020.