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Investments - Schedule of Equity Method Investments (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 956	$ 966	$ 948
Defense, Space & Security | United Launch Alliance
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		50.00%	50.00%
Equity method investments		$ 582	$ 587
BCA, BDS, BGS and Other
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 384	$ 361

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Topic 323
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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