CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net earnings	$ 80	$ 28	$ 250	$ 315
Other comprehensive income (loss):
Foreign currency translation adjustments	(8)	6	13	(8)
Changes in unamortized actuarial loss, net of tax expense of $4, $3, $9 and $9	12	6	31	21
Changes in unamortized net prior service credit, net of tax benefit of $0, $0, $0 and $0	(1)	1	(1)	1
Unrealized (loss) gain on cash flow hedges (Note 9)	(2)	0	4	0
Total other comprehensive (loss) income	1	13	47	14
Total comprehensive income	$ 81	$ 41	$ 297	$ 329