Segment and Revenue Information Segment and Revenue Information (Schedule of Revenue Disaggregation) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 11,807	$ 15,751	$ 28,715	$ 38,668
Global Services | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	3,488	4,543	8,116	9,162
Global Services | Operating Segments | Commercial Customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,371	2,526	3,894	5,111
Global Services | Operating Segments | Government Customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,066	1,977	4,099	3,974
Global Services | Operating Segments | External Customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,437	$ 4,503	$ 7,993	$ 9,085
Global Services | Operating Segments | U S Government Contracts
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	46.00%	32.00%	40.00%	32.00%
Global Services | Operating Segments | Fixed-price Contract
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	86.00%	90.00%	88.00%	89.00%
Global Services | Operating Segments | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	41.00%	57.00%	49.00%	57.00%
Global Services | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	$ 51	$ 40	$ 123	$ 77
Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	1,633	4,722	7,838	16,544
Commercial Airplanes | Operating Segments | External Customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,618	$ 4,714	$ 7,811	$ 16,367
Commercial Airplanes | Operating Segments | Fixed-price Contract
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	100.00%	100.00%	100.00%	100.00%
Commercial Airplanes | Operating Segments | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	99.00%	99.00%	99.00%	99.00%
Commercial Airplanes | Operating Segments | Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 786	$ 6,907	$ 4,775	$ 14,390
Commercial Airplanes | Operating Segments | Europe
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	332	1,023	2,302	2,684
Commercial Airplanes | Operating Segments | Asia
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	305	4,360	1,464	7,534
Commercial Airplanes | Operating Segments | Middle East
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7	695	556	1,805
Commercial Airplanes | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	142	829	453	2,367
Commercial Airplanes | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,383	3,417	3,557	7,587
Commercial Airplanes | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	15	8	27	177
Defense, Space & Security | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	$ 6,588	$ 6,579	$ 12,630	$ 13,166
Defense, Space & Security | Operating Segments | U S Government Contracts
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	89.00%	89.00%	89.00%	88.00%
Defense, Space & Security | Operating Segments | Fixed-price Contract
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	69.00%	69.00%	68.00%	69.00%
Defense, Space & Security | Operating Segments | Transferred over Time
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, excluding assessed tax, Percentage	99.00%	99.00%	99.00%	99.00%
Defense, Space & Security | Operating Segments | Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,751	$ 1,743	$ 3,477	$ 3,447
Defense, Space & Security | Operating Segments | United States
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,837	4,836	9,153	9,719
B-737-Max | Customer Concessions | Commercial Airplanes | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ (551)	$ (5,610)	$ (521)	$ (5,610)