Basis of Presentation - Narrative (Details) - USD ($) $ in Millions			9 Months Ended
	Oct. 14, 2024	May 15, 2024	Sep. 30, 2024	Sep. 30, 2023	Oct. 11, 2024	May 01, 2024	Dec. 31, 2023
Basis of Presentation Disclosure [Line Items]
Net cash provided by (used in) operating activities			$ (8,630)	$ 2,579
Cash, cash equivalents, and short-term investments			10,500
Debt and lease obligation			$ 57,700				$ 52,300
Line of credit facility, expiration period			5 years
Supplier finance program, obligation			$ 2,700				2,900
Goodwill			8,112				$ 8,093
Military Aircraft | Defense, Space & Security
Basis of Presentation Disclosure [Line Items]
Goodwill			1,295
Subsequent Event
Basis of Presentation Disclosure [Line Items]
Restructuring and related cost, number of positions eliminated, expected percent					10.00%
Supplemental Credit Agreement | Line of Credit | Subsequent Event
Basis of Presentation Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity	$ 10,000
Line of credit facility, expiration period	364 days
Three Hundred and Sixty Four Day Revolving Credit Facility - Expiring August 2024 | Line of Credit
Basis of Presentation Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity		$ 800
Line of credit facility, expiration period		364 days
Line of Credit | Revolving Credit Facility
Basis of Presentation Disclosure [Line Items]
Debt instrument, unused borrowing capacity, amount			10,000
Line of credit facility, maximum borrowing capacity			$ 10,000
Line of Credit | Five Year Credit Facility Expiring - May 2029
Basis of Presentation Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity		$ 4,000
Line of credit facility, expiration period		5 years
Line of Credit | Five Year Credit Facility - Expiring August 2025
Basis of Presentation Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity		$ 3,000
Line of credit facility, expiration period		3 years
Line of Credit | Five Year Credit Facility Expiring - August 2028
Basis of Presentation Disclosure [Line Items]
Line of credit facility, maximum borrowing capacity		$ 3,000
Line of credit facility, expiration period		5 years
Senior Unsecured Notes | Senior Notes
Basis of Presentation Disclosure [Line Items]
Debt instrument, face amount						$ 10,000