Revision of Prior Period Financial Statements - Schedule of Comprehensive Statement (Details) - USD ($) $ in Millions	3 Months Ended										6 Months Ended				9 Months Ended	12 Months Ended
	Jun. 30, 2024	[1]	Mar. 31, 2024		Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023		Mar. 31, 2023		Jun. 30, 2024		Jun. 30, 2023		Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Earnings	$ 963		$ 880	[1]	$ 882	$ 828	$ 984	[2]	$ 974	[3]	$ 1,843	[2]	$ 1,958	[2]	$ 2,786	$ 3,668	$ 4,114
Other Comprehensive Income (Loss) - Net of Tax: Pension and Other Post-Employment Benefits																129	(120)
Total Other Comprehensive Income	3		6	[1]			(4)	[3]	2	[3]	9					131	(34)
Total Comprehensive Earnings (Note 10)	$ 966		886	[1]	997	846	980	[2]	976	[3]	$ 1,852	[2]	1,956	[2]	2,802	3,799	4,080
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Earnings			893		886	846	996		987				1,983		2,829	3,715	4,166
Other Comprehensive Income (Loss) - Net of Tax: Pension and Other Post-Employment Benefits																74	(66)
Total Other Comprehensive Income																76	20
Total Comprehensive Earnings (Note 10)			899		946	864	992		989				1,981		2,845	3,791	4,186
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net Earnings			(13)		(4)	(18)	(12)		(13)				(25)		(43)	(47)	(52)
Other Comprehensive Income (Loss) - Net of Tax: Pension and Other Post-Employment Benefits																55	(54)
Total Other Comprehensive Income																55	(54)
Total Comprehensive Earnings (Note 10)			$ (13)		$ 51	$ (18)	$ (12)		$ (13)				$ (25)		$ (43)	$ 8	$ (106)

[1] See Note 11, Revision of Prior Period Financial Statements.

[2] See Note 11, Revision of Prior Period Financial Statements.

[3] See Note 11, Revision of Prior Period Financial Statements.