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Revenue and Construction Contracts (Tables) | 12 Months Ended
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Dec. 31, 2018
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Summary of Revenue, After Sales and Eliminations Between Related Parties Resulting from Consolidation | For the years ended December 31, 2018, 2017 and 2016, revenue, after eliminations between related parties resulting from consolidation, is as follows:
|  |  |  |  | 2018 |  |  | 2017 |  |  | 2016 |
From the sale of goods associated to CEMEX’s main activities1 |  |  | Ps |  |  |  | 265,584 |  |  |  | 246,135 |  |  |  | 239,230 |
From the sale of services2 |  |  |  |  |  |  | 3,064 |  |  |  | 3,313 |  |  |  | 3,110 |
From the sale of other goods and services3 |  |  |  |  |  |  | 8,207 |  |  |  | 7,989 |  |  |  | 7,137 |
|  |  | Ps |  |  |  | 276,855 |  |  |  | 257,437 |  |  |  | 249,477 |
1 | Includes in each period revenue generated under construction contracts that are presented in the table below.
2 | Refers mainly to revenues generated by Neoris N.V. and its subsidiaries, involved in providing information technology solutions and services.
3 | Refers mainly to revenues generated by subsidiaries not individually significant operating in different lines of business.
Disclosure of recognised revenue from construction contracts | For 2018, 2017 and 2016, revenues and costs related to construction contracts in progress were as follows:
|  |  |  |  | Accrued1 |  |  | 2018 |  |  | 2017 |  |  | 2016 |
Revenue from construction contracts included in consolidated revenues2 |  |  | Ps |  |  |  | 1,063 |  |  |  | 1,383 |  |  |  | 992 |  |  |  | 1,033 |
Costs incurred in construction contracts included in consolidated cost of sales3 |  |  |  |  |  |  | (1,055 | ) |  |  | (1,312 | ) |  |  | (1,205 | ) |  |  | (1,133 | )
Construction contracts gross operating profit (loss) |  |  | Ps |  |  |  | 8 |  |  |  | 71 |  |  |  | (213 | ) |  |  | (100 | )
1 | Revenues and costs recognized from inception of the contracts until December 31, 2018 in connection with those projects still in progress.
2 | Revenues from construction contracts during 2018, 2017 and 2016, were mainly obtained in Mexico and Colombia.
3 | Refers to actual costs incurred during the periods.
Summary of Changes in the Balance of Contract Liabilities with Customers | For the years ended December 31, 2018, 2017 and 2016 changes in the balance of contract liabilities with customers are as follows:
|  |  |  |  | 2018 |  |  | 2017 |  |  | 2016 |
Opening balance of contract liabilities with customers |  |  | Ps |  |  |  | 770 |  |  |  | 645 |  |  |  | 660 |
Increase during the period for new transactions |  |  |  |  |  |  | 1,070 |  |  |  | 1,156 |  |  |  | 1,040 |
Decrease during the period for exercise or expiration of incentives |  |  |  |  |  |  | (890 | ) |  |  | (1,148 | ) |  |  | (1,038 | )
Currency translation effects |  |  |  |  |  |  | (175 | ) |  |  | 117 |  |  |  | (17 | )
Closing balance of contract liabilities with customers |  |  | Ps |  |  |  | 775 |  |  |  | 770 |  |  |  | 645 |

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- Definition The explanation of the significant changes in the contract assets and the contract liabilities. [Refer: Contract assets; Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 118 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_118&doctype=Standard -URIDate 2018-03-16 + Details
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