Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net earnings	$ 5,017	$ 5,336	$ 6,920
Retirement benefits
Net actuarial gain (loss) recognized due to plan remeasurements, net of tax of $28 million in 2025, $96 million in 2024 and $181 million in 2023	99	340	(689)
Amortization of actuarial losses and prior service credits, net of tax of $69 million in 2025, $21 million in 2024 and $40 million in 2023	257	76	(149)
Pension settlement charge, net of tax of $102 million	377	0	0
Other, net of tax of $18 million in 2025, $4 million in 2024 and $6 million in 2023	177	(65)	58
Other comprehensive income (loss), net of tax	910	351	(780)
Comprehensive income	$ 5,927	$ 5,687	$ 6,140