Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Statement of Comprehensive Income [Abstract]
Net earnings	$ 606	$ 593
Other comprehensive income (loss), net of tax:
Foreign currency translation	(20)	(492)
Pension and postretirement	4	3
Cash flow hedges	8	10
Total other comprehensive income (loss)	(8)	(479)
Comprehensive income	598	114
Less: Noncontrolling interests in subsidiaries	0	1
Comprehensive income common stockholders	$ 598	$ 113