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Unaudited Quarterly Financial Information Unaudited Quarterly Financial Information (Tables)

12 Months Ended

Sep. 30, 2020

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Information

			Unaudited Quarterly Financial Information
			2020
			First						Second						Third						Fourth						Total
Operating revenues			$	2,578					$	2,521					$	2,251					$	2,899					$	10,249
Operating expenses			2,046						1,914						1,716						1,862						7,538
Operating income			532						607						535						1,037						2,711
Net income (loss)			192						255						205						700						1,352

			Unaudited Quarterly Financial Information
			2019
			First						Second						Third						Fourth						Total
Operating revenues			$	2,725					$	2,750					$	2,604					$	3,239					$	11,318
Operating expenses			1,960						2,158						2,088						2,301						8,507
Operating income			765						592						516						938						2,811
Net income (loss)			423						241						165						588						1,417

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- References

No definition available.

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- Definition

Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306

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