Business Segment Reporting (Schedule Of Reconciliation Of Net Income (Loss) To Reportable Segment Adjusted EBITDA) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Reconciliation of Reportable Segment Adjusted EBITDA to Net Income (Loss)
Net Income	$ 14	$ 70
Depreciation and amortization expense	28	23
Acquisition-related costs	1	1
Fumigation related matters		1
Non-cash stock-based compensation expense	4	4
Restructuring and other charges	4	6
Realized (gain) on investment in frontdoor, inc.		(40)
Net earnings from discontinued operations	(13)	(16)
(Benefit) provision for income taxes	(2)	3
Loss on extinguishment of debt		6
Interest expense	23	27
Reportable Segment Adjusted EBITDA	63	83
Corporate And Other Operations [Member]
Reconciliation of Reportable Segment Adjusted EBITDA to Net Income (Loss)
Net Income	1	(3)
ServiceMaster Brands [Member]
Reconciliation of Reportable Segment Adjusted EBITDA to Net Income (Loss)
Costs	3	$ 3
European Pest Control [Member]
Reconciliation of Reportable Segment Adjusted EBITDA to Net Income (Loss)
Costs	$ (1)