Accounts Receivable (Schedule Of Accounts Receivable) (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Accounts Receivables [Line Items]
Accounts Receivable, Allowance for Credit Loss		$ (390)	$ (444)	$ (138)
Accounts receivable, net		2,641	1,955
U.S. Government Contracts
Accounts Receivables [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current	[1]	1,180	811
Commercial Airplanes Accounts Receivable
Accounts Receivables [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current		279	17
Global Services Accounts Receivable
Accounts Receivables [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current	[2]	1,456	1,437
Defense, Space, & Security Accounts Receivable
Accounts Receivables [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current	[2]	111	120
Other Accounts Receivable
Accounts Receivables [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current		$ 5	$ 14

[1] Includes foreign military sales through the U.S. government

[2] Excludes U.S. government contracts