Restructuring And Other Charges (Schedule Of Restructuring Charges) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 8	$ 2	$ 12	$ 8
Stock-based compensation expense		5	4	10	8
Terminix [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[1]	4	1	5	3
Impairment charges		2		2
Severance and other restructuring costs		2	1	2	3
Unpaid and accrued costs		2		2
European Pest Control And Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[2]	4	1	7	4
Global Service Center Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[3]				1
Lease termination costs					1
Corporate And Other Operations [Member]
Restructuring Cost and Reserve [Line Items]
Unpaid and accrued costs		3		3
Severance And Other Costs [Member] | European Pest Control And Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		2		3	1
Other Costs [Member] | European Pest Control And Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[4]	$ 2	$ 1	$ 4	$ 4

[1] For the three and six months ended June 30, 2020, these charges included $2 million of severance and other costs and $2 million of impairment charges on our call center right of use assets, which we exited during the second quarter. Severance and other costs of $2 million were unpaid and accrued as of June 30, 2020. For the three and six months ended June 30, 2019, these charges included $1 million and $3 million, respectively, of severance and other costs.

[2] We have historically made changes on an ongoing basis to enhance capabilities and reduce costs in our corporate functions that provide company-wide administrative services to support operations, which represents costs to enhance capabilities and align corporate functions with those required to support our strategic needs as a pure play pest control company after the potential sale of the ServiceMaster Brands business and after the American Home Shield spin-off. Of the restructuring charges incurred by European Pest Control and Other, $3 million was unpaid and accrued as of June 30, 2020. For the three and six months ended June 30, 2020 and 2019, these charges were comprised of the following

[3] For the six months ended June 30, 2019, these charges included lease termination and other charges of $1 million related to our headquarter relocation.

[4] Represents costs incurred in connection with our CEO transition, charges associated with the marketing of our corporate aircraft for sale and accelerated depreciation on systems we are replacing with the implementation of our new customer experience platform.