CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Comprehensive income:
Net earnings	$ 396	$ 839	$ 1,880
Other comprehensive (loss) income:
Foreign currency translation adjustments	(40)	7	(52)
Changes in unamortized actuarial loss, net of tax benefit (expense) of $20 in 2024, $17 in 2023 and $(95) in 2022	(69)	(51)	284
Changes in unamortized net prior service credit, net of tax (expense) benefit of $(1) in 2024, $2 in 2023 and $(2) in 2022	0	(2)	0
Total comprehensive income	$ 287	$ 793	$ 2,112