Vacation Ownership Contract Receivables (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Contracts Receivable [Abstract]
Interest income on securitized receivables	$ 80	$ 84
Originated vacation ownership contract receivables	356	344
Vacation ownership contract principal collections	$ 288	$ 292
Weighted average interest rate	14.60%		14.60%
Financing Receivable, Threshold Period Past Due	90 days
Financing Receivable, Threshold Period Past Due, Writeoff	120 days

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- Definition

Threshold period when financing receivable is considered past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

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- Definition

Threshold period when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-14

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- Definition

Interest and fee income from other loans extended to individual consumers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(1))
-Publisher FASB
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- Definition

The cash inflow associated with the collection of receivables arising from the financing of goods and services.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 12
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-Publisher FASB
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- Definition

Contract Receivable Weighted Average Interest Rate

+ References

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- Definition

The cash outflows associated with principal origination from a borrowing supported by a written promise to pay an obligation.

+ References

No definition available.

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