Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net earnings	$ 430	$ 503	$ 1,022	$ 635
Other comprehensive income (loss), net of tax:
Foreign currency translation	189	6	(303)	180
Pension and postretirement	3	(12)	6	(24)
Cash flow hedges	0	(1)	10	2
Total other comprehensive income (loss)	192	(7)	(287)	158
Comprehensive income	622	496	735	793
Less: Noncontrolling interests in subsidiaries	(54)	2	(53)	(6)
Comprehensive income common stockholders	$ 676	$ 494	$ 788	$ 799