Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Accrued Self-Insured Claims, Net [Member]

Commitments and Contingencies [Line Items]

Schedule Of Reconciliation Of Beginning And Ending Accrued Claims

	Accrued
	Self-insured
(In millions)	Claims, Net
Balance as of December 31, 2017	$	115
Provision for self-insured claims		29
Cash payments		(33)
Balance as of December 31, 2018		111
Provision for self-insured claims		36
Cash payments		(35)
Balance as of December 31, 2019	$	111

Litigated Claims And Non-Litigated Claims [Member]

Commitments and Contingencies [Line Items]

Schedule Of Reconciliation Of Beginning And Ending Accrued Claims

	Accrued
	Termite Damage
(In millions)	Claims
Balance as of December 31, 2017	$	22
Provision for termite damage claims		39
Cash payments		(33)
Balance as of December 31, 2018		28
Provision for termite damage claims(1)		95
Cash payments		(44)
Balance as of December 31, 2019	$	80

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(1)Includes a change in estimate of $53 million, as described above.