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Note 3. Revenue Recognition Revenue Recognition - Deferred Revenue (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2018 | Jan. 01, 2018
Deferred Revenue Arrangement [Line Items] |  |  |  |
Royalty Rate |  | 6.00% |  |
Deferred Revenue |  | $ 105 | $ 105 | $ 114
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 224 |  |
Recognized as Revenue during the period |  | (233) |  |
Ending Balance at December 31, 2018 |  | 105 |  |
Real Estate Franchise Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue | [1] | 78 | 78 | 79
Deferred Sales Commission |  |  | 25 | 24
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period | [1] | 118 |  |
Recognized as Revenue during the period | [1] | (119) |  |
Ending Balance at December 31, 2018 | [1] | 78 |  |
Real Estate Franchise Services | Brand Marketing Fees |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 12 | 12 | 13
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Ending Balance at December 31, 2018 |  | 12 |  |
Real Estate Franchise Services | Area Development Fees |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 54 | 54 | 58
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 1 |  |
Recognized as Revenue during the period |  | (5) |  |
Ending Balance at December 31, 2018 |  | 54 |  |
Company Owned Real Estate Brokerage Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 18 | 18 | 17
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 19 |  |
Recognized as Revenue during the period |  | (18) |  |
Ending Balance at December 31, 2018 |  | 18 |  |
Company Owned Real Estate Brokerage Services | New Development Business |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 10 | 10 | 10
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 6 |  |
Recognized as Revenue during the period |  | (6) |  |
Ending Balance at December 31, 2018 |  | 10 |  |
Relocation Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 9 | 9 | 18
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 87 |  |
Recognized as Revenue during the period |  | (96) |  |
Ending Balance at December 31, 2018 |  | 9 |  |
Relocation Services | Outsourcing Management Fees |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 4 | 4 | 5
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 62 |  |
Recognized as Revenue during the period |  | (63) |  |
Ending Balance at December 31, 2018 |  | 4 |  |
Relocation Services | Broker Network Fees |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Deferred Revenue |  | 0 | $ 0 | $ 8
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Additions during the period |  | 4 |  |
Recognized as Revenue during the period |  | (12) |  |
Ending Balance at December 31, 2018 |  | $ 0 |  |
Minimum | Company Owned Real Estate Brokerage Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
New Development Period |  | 18 months |  |
Minimum | Relocation Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Average Length of a Move |  | 3 months |  |
Maximum | Company Owned Real Estate Brokerage Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
New Development Period |  | 24 months |  |
Maximum | Relocation Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Average Length of a Move |  | 6 months |  |
International Franchise Rights | Real Estate Franchise Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Amortization period |  | 25 years |  |
Franchise Rights | Real Estate Franchise Services |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Amortization period |  | 30 years |  |
[1] | (a)Revenues recognized include intercompany marketing fees paid by the Company Owned Real Estate Brokerage Services segment.

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- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
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