Basis of Presentation (Unaudited) Backlog and Contract Assets and Liabilities (Details 3) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Change in Contract with Customer, Liability [Abstract]
Contract with Customer, Liability, Revenue Recognized		$ 1,100	$ 899	$ 3,000	$ 2,600
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount		83,100		$ 83,100
Restricted Space [Member] | Space Systems [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Backlog Reduction due to Contract Termination	$ 1,600
NGI Program [Member] | Space Systems [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Backlog Reduction due to Contract Termination		$ 700
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-06-30
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage		40.00%		40.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		12 months		12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Percentage		65.00%		65.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		24 months		24 months