Liabilities, Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Liabilities Commitments And Contingencies [Line Items]
Deferred Prosecution Agreement Liability		$ 744
737 MAX Customer Concessions & Other Considerations Liability	$ 2,900
Amount by which estimated range of reasonably possible remediation costs exceeded recorded liabilities	1,094	1,095
Contingent liabilities on outstanding letters of credit agreements and surety bonds	3,634	4,238
Cash surrender value of life insurance policies	374	395
Total value of loans against underlying life insurance policies	360	382
Within Next fiscal Year [Member]
Liabilities Commitments And Contingencies [Line Items]
737 MAX Customer Concessions & Other Considerations Liability	800
Lower Customer Delivery Payments [Member]
Liabilities Commitments And Contingencies [Line Items]
737 MAX Customer Concessions & Other Considerations Liability	1,000
Cash Payments to Customers [Member]
Liabilities Commitments And Contingencies [Line Items]
737 MAX Customer Concessions & Other Considerations Liability	1,000
Contingent On Customer Negotiations [Member]
Liabilities Commitments And Contingencies [Line Items]
Deferred Prosecution Agreement Liability	1,770
737 MAX Customer Concessions & Other Considerations Liability	700
Customer Concessions [Member]
Liabilities Commitments And Contingencies [Line Items]
737 MAX Customer Concessions & Other Considerations Liability	200
Contracted Customer Concessions and Other Liabilities [Member]
Liabilities Commitments And Contingencies [Line Items]
737 MAX Customer Concessions & Other Considerations Liability	2,200
KC-46A Tanker [Member]
Liabilities Commitments And Contingencies [Line Items]
Contract Value	19,000
KC-46A Tanker [Member] | Capitalized Precontract Costs [Member]
Liabilities Commitments And Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	243
KC-46A Tanker [Member] | Potential Termination Liabilities [Member]
Liabilities Commitments And Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	409
Commercial Aircraft Commitments [Member] | Total Contractual Trade In Value Maximum [Member]
Liabilities Commitments And Contingencies [Line Items]
Other Commitment	612	950
Commercial Aircraft Commitments [Member] | Net amounts payable to customers related to probable contractual trade-in commitments [Member]
Liabilities Commitments And Contingencies [Line Items]
Other Commitment	283	599
Commercial Aircraft Commitments [Member] | Probable Contractual Trade In Value [Member]
Liabilities Commitments And Contingencies [Line Items]
Other Commitment	283	580
Financing Commitment [Member]
Liabilities Commitments And Contingencies [Line Items]
Other Commitment	12,905	11,512
Joint Venture [Member]
Liabilities Commitments And Contingencies [Line Items]
Other Commitment	248
737 MAX Storage, Pilot Training and Software Updates [Member]
Liabilities Commitments And Contingencies [Line Items]
Additional expenses as a result of the 737 MAX grounding	175	416	$ 328
B-737 Aircraft [Member]
Liabilities Commitments And Contingencies [Line Items]
Abnormal Production Costs	1,887	2,567
737 MAX Customer Concessions & Other Considerations Liability	2,940	5,537	$ 7,389
Concessions & Other In-Kind Considerations to Customers	(48)	(162)
Accrual for 737 MAX Customer Concessions and Other Considerations Liability	$ (14)	(498)
B737NG Structure Picklefork [Member]
Liabilities Commitments And Contingencies [Line Items]
Cost of Goods and Services Sold		$ 336