Revenue (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Home service plans, typical term	1 year
Deferred customer acquisition costs	$ 11,000,000	$ 12,000,000
Amortization of deferred customer acquisition costs	12,000,000	16,000,000	$ 19,000,000
Impairment losses related to capitalized costs	0	0	$ 0
Contract assets	0	$ 0
Revenue recognized, opening balance	98,000,000
Maximum [Member]
Disaggregation of Revenue [Line Items]
Deferred policy acquisition cost	$ 1,000,000