Equity Roll Forward (Tables)

6 Months Ended

Mar. 31, 2018

Equity [Abstract]

Schedule of Stockholders' Equity

The change in equity for the first six months of 2018 is shown below:  

	Common Stockholders' Equity				Noncontrolling Interests in Subsidiaries			Total Equity
Balance at September 30, 2017		$	8,718			52			8,770
Net earnings		874				9			883
Other comprehensive income (loss)		192				—			192
Cash dividends		(618		)		(16	)		(634	)
Purchases of treasury stock, net of issuances		(677		)		—			(677	)
Adoption of accounting standard update		3				—			3
Balance at March 31, 2018		$	8,492			45			8,537