Revenues (Deferred Revenue By Segment) (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Deferred revenue		$ 101	$ 101	$ 101
European Pest Control [Member]
Segment Reporting Information [Line Items]
Deferred revenue		15
ServiceMaster Brands [Member] | Royalty Arrangement [Member]
Segment Reporting Information [Line Items]
Deferred revenue		5	7
Operating Segment [Member]
Segment Reporting Information [Line Items]
Deferred revenue		101	101
Operating Segment [Member] | Terminix [Member]
Segment Reporting Information [Line Items]
Deferred revenue		92	91
Operating Segment [Member] | ServiceMaster Brands [Member]
Segment Reporting Information [Line Items]
Deferred revenue	[1]	$ 9	$ 11

[1] Includes approximately $5 million and $7 million of Deferred revenue included within Other long-term obligations, primarily self-insured claims on the consolidated statement of financial position as of December 31, 2019 and 2018, respectively.