Unbilled Receivables, Net (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unbilled receivable, net of progress and performance-based payments received	$ 6,002	$ 5,512
Allowance for expected credit losses	(19)	(20)
Unbilled receivables, net	5,983	5,492
US Government [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unbilled receivables	23,304	22,140
Government Contract Receivable, Progress Payment Offset	17,664	17,038
Unbilled receivable, net of progress and performance-based payments received	5,640	5,102
International and Other Customers [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unbilled receivables	1,822	2,913
Progress and performance-based payments received	(1,460)	(2,503)
Unbilled receivable, net of progress and performance-based payments received	$ 362	$ 410