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Short And Long-Term Debt Securitization Obligations (Details) £ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2020 GBP (£)
Debt Instrument [Line Items] |  |  |  |
Securitization obligations | $ 106 |  | $ 206 |
Securitization obligation |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Relocation receivables and other related relocation assets that collateralize securitization obligations | 135 |  | 200 |
Interest Expense, Debt | $ 5 |  | $ 8 |
Weighted average interest rate on securitization obligations | 3.50% |  | 4.20% | 3.50%
Apple Ridge Funding LLC | Securitization obligation |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total capacity, securitization obligations | $ 200 |  |  |
Securitization obligations | 102 | [1],[2] | $ 195 |
Available capacity, debt | 98 |  |  |
Cartus Financing Limited | Securitization obligation |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total capacity, securitization obligations | 21 |  |  |
Securitization obligations | 4 | [2],[3] | $ 11 |
Available capacity, debt | $ 17 |  |  |
Revolving Credit Facility | Cartus Financing Limited | Securitization obligation |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total capacity, securitization obligations | £ |  |  |  | £ 10
Working Capital Facility | Cartus Financing Limited | Securitization obligation |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total capacity, securitization obligations | £ |  |  |  | £ 5
[1] | As of December 31, 2020, the Company had $200 million of borrowing capacity under the Apple Ridge Funding LLC securitization program leaving $98 million of available capacity.
[2] | Available capacity is subject to maintaining sufficient relocation related assets to collateralize these securitization obligations.
[3] | Consists of a £10 million revolving loan facility and a £5 million working capital facility. As of December 31, 2020, the Company had $21 million of borrowing capacity under the Cartus Financing Limited securitization program leaving $17 million of available capacity.

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