Consolidated Statement of Equity Statement - USD ($) $ in Millions	Total	Common stock	Additional paid-in-capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests in subsidiaries
Beginning balance at Sep. 30, 2020			$ 470	$ 24,955	$ (1,577)	$ (15,920)	$ 42
Statement [Roll Forward]
Stock plans			29
Net earnings common stockholders	$ 445			445
Dividends paid				(303)			(5)
Stockholders' Equity, Other				(1)
Foreign currency translation	189				189
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	27				(27)
Cash flow hedges	31				31
Purchases						(13)
Issued under stock plans						86
Net earnings							7
Other comprehensive income	247
Ending balance at Dec. 31, 2020	8,939	$ 477	499	25,096	(1,330)	(15,847)	44
Statement [Roll Forward]
Common stockholders' equity	8,895
Common stockholders' equity	9,883
Beginning balance at Sep. 30, 2021	9,923		522	26,047	(872)	(16,291)	40
Statement [Roll Forward]
Stock plans			42
Net earnings common stockholders	896			896
Dividends paid				(307)			0
Stockholders' Equity, Other				0
Foreign currency translation	(72)				(72)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	18				(18)
Cash flow hedges	4				4
Purchases						(258)
Issued under stock plans						43
Net earnings							(1)
Other comprehensive income	(50)
Ending balance at Dec. 31, 2021	10,288	$ 477	$ 564	$ 26,636	$ (922)	$ (16,506)	$ 39
Statement [Roll Forward]
Common stockholders' equity	$ 10,249