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Geographic Region (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | $ 1,354 | $ 1,676 | $ 1,820 | $ 1,229 | $ 1,444 | $ 1,674 | $ 1,793 | $ 1,203 | $ 6,079 | [1],[2] | $ 6,114 | [1],[2],[3] | $ 5,810 | [1],[2],[3] |
Total assets | 7,290 |  |  |  | 7,337 |  |  |  | 7,290 |  | 7,337 |  | 7,421 |  | $ 7,363
Net property and equipment | 304 |  |  |  | 289 |  |  |  | 304 |  | 289 |  | 267 |  |
United States |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 5,961 |  | 5,997 |  | 5,683 |  |
Total assets | 7,214 |  |  |  | 7,261 |  |  |  | 7,214 |  | 7,261 |  | 7,347 |  |
Net property and equipment | 302 |  |  |  | 287 |  |  |  | 302 |  | 287 |  | 265 |  |
All Other Countries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 118 |  | 117 |  | 127 |  |
Total assets | 76 |  |  |  | 76 |  |  |  | 76 |  | 76 |  | 74 |  |
Net property and equipment | $ 2 |  |  |  | $ 2 |  |  |  | $ 2 |  | $ 2 |  | $ 2 |  |
[1] | Revenues for the Relocation Services segment include intercompany referral commissions paid by the Company Owned Real Estate Brokerage Services segment of $39 million, $40 million and $43 million for the years ended December 31, 2018, 2017 and 2016, respectively. Such amounts are recorded as contra-revenues by the Company Owned Real Estate Brokerage Services segment. There are no other material intersegment transactions.
[2] | Transactions between segments are eliminated in consolidation. Revenues for the Real Estate Franchise Services segment include intercompany royalties and marketing fees paid by the Company Owned Real Estate Brokerage Services segment of $306 million, $311 million and $293 million for the years ended December 31, 2018, 2017 and 2016, respectively. Such amounts are eliminated through the Corporate and Other line.
[3] | Prior period amounts have not been adjusted under the modified retrospective method.

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