Reportable Segment Information - Financial Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Sales	$ 489	$ 456
Operating Income	120	96
Gain from actuarial remeasurements	8
Separation costs	6	0
Core North America
Segment Reporting Information [Line Items]
Sales	237	241
Quick Lubes
Segment Reporting Information [Line Items]
Sales	127	100
International
Segment Reporting Information [Line Items]
Sales	125	115
Operating Segments
Segment Reporting Information [Line Items]
Operating Income	100	92
Operating Segments \| Core North America
Segment Reporting Information [Line Items]
Operating Income	51	53
Operating Segments \| Quick Lubes
Segment Reporting Information [Line Items]
Operating Income	29	23
Operating Segments \| International
Segment Reporting Information [Line Items]
Operating Income	20	16
Unallocated and Other
Segment Reporting Information [Line Items]
Operating Income	20	$ 4
Gain from actuarial remeasurements	8
Separation costs	$ 6

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Gain or Loss
-URI http://asc.fasb.org/extlink&oid=49168827

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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The net result for the period of deducting operating expenses from operating revenues.

+ References

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Represents the amount of costs recognized in relation to the separation of the company.

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