Restructuring And Other Charges (Schedule Of Restructuring Charges) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 15	$ 17	$ 21
Professional Fees		2	0	0
Stock-based compensation expense		15	14	10
Terminix [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[1]	5	2	2
Unpaid and accrued costs		1
ServiceMaster Brands [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[2]	2	1	1
Corporate And Other Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[3]	6	7	2
Professional Fees		2
Other costs			4
Severance and other restructuring costs		1	3	2
Global Service Center Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[4]	1	8	5
Operating Leases, Rent Expense			7
Professional Fees			1
Leadership Transition [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	[5]			11
Severance costs				5
Stock-based compensation expense				5
Accelerated Depreciation On Systems [Member] | Corporate And Other Operations [Member]
Restructuring Cost and Reserve [Line Items]
Other costs		3
Lease Termination And Severance Costs [Member] | Terminix [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 5	$ 2	$ 2

[1] For the years ended December 31, 2019, 2018 and 2017, these charges include $5 million, $2 million and $2 million, respectively, of lease termination and severance costs. Of this amount, $1 million was unpaid and accrued as of December 31, 2019.

[2] Represents severance costs related to the reorganization of ServiceMaster Brands. All amounts under these agreements have been paid as of December 31, 2019.

[3] 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. For year ended December 31, 2019, these charges included $3 million of accelerated depreciation on systems we are replacing with the implementation of Salesforce and $2 million of professional fees and other costs to enhance capabilities and align corporate functions with those required to support our strategic needs after the American Home Shield spin-off. For the years ended December 31, 2019, 2018 and 2017, these charges also included $1 million, $3 million and $2 million, respectively, of severance and other costs. For the year ended December 31, 2018, these charges also included $4 million of costs incurred due to the Separation that were not directly attributable to American Home Shield and therefore were not included in discontinued operations. All amounts under these agreements have been paid as of December 31, 2019.

[4] For the year ended December 31, 2019, these charges included lease termination and other charges of $1 million. For the year ended December 31, 2018, these charges include future rent of $7 million and $1 million of professional and other fees. All amounts under these agreements have been paid as of December 31, 2019.

[5] For the year ended December 31, 2017, these charges include $5 million of severance costs and $5 million of stock-based compensation expense as part of the severance agreements with the former CEO and CFO. All amounts under these agreements have been paid as of December 31, 2019.