Reportable Segment Information - Sales and Operating Income by Reportable Segment (Details) $ in Millions	3 Months Ended
	Dec. 31, 2019 USD ($) numberOfCountries numberOfSegments	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Sales	$ 607	$ 557
Number of reportable segments | numberOfSegments	3
Operating income	$ 104	87
Non-US
Segment Reporting Information [Line Items]
Number of countries where our products are sold | numberOfCountries	140
Quick Lubes | North America
Segment Reporting Information [Line Items]
Sales	$ 218	189
Quick Lubes | EMEA [Member]
Segment Reporting Information [Line Items]
Sales	0	0
Quick Lubes | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales	0	0
Quick Lubes | Latin America
Segment Reporting Information [Line Items]
Sales	0	0
Core North America
Segment Reporting Information [Line Items]
Sales	248	232
Core North America | EMEA [Member]
Segment Reporting Information [Line Items]
Sales	0	0
Core North America | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales	0	0
Core North America | Latin America
Segment Reporting Information [Line Items]
Sales	0	0
International
Segment Reporting Information [Line Items]
Sales	141	136
International | North America
Segment Reporting Information [Line Items]
Sales	0	0
North America
Segment Reporting Information [Line Items]
Sales	466	421
Latin America
Segment Reporting Information [Line Items]
Sales	24	25
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales	70	67
EMEA [Member]
Segment Reporting Information [Line Items]
Sales	47	44
Operating Segments
Segment Reporting Information [Line Items]
Operating income	104	87
Operating Segments | Quick Lubes
Segment Reporting Information [Line Items]
Sales	218	189
Operating income	38	38
Operating Segments | Core North America
Segment Reporting Information [Line Items]
Sales	248	232
Operating income	46	31
Operating Segments | International
Segment Reporting Information [Line Items]
Sales	141	136
Operating income	20	18
Unallocated and Other
Segment Reporting Information [Line Items]
Operating income	0	0
Company-Owned [Member] | Quick Lubes
Segment Reporting Information [Line Items]
Sales	142	124
Non-Company Owned [Member] | Quick Lubes
Segment Reporting Information [Line Items]
Sales	76	65
Retail [Member] | Core North America
Segment Reporting Information [Line Items]
Sales	137	116
Installer And Other [Member] | Core North America
Segment Reporting Information [Line Items]
Sales	$ 111	$ 116