[26] Trade receivables

The trade receivables break down as follows: > TABLE 074

Trade receivables

 

074

in € million

2017

2016

Receivables from third parties

958.5

863.6

thereof receivables from third parties before valuation allowances

1,009.6

904.0

thereof valuation allowances for overdue receivables >90 days ≤180 days

–10.0

–4.8

thereof valuation allowances for overdue receivables >180 days

–25.8

–24.7

thereof other valuation allowances for receivables

–15.3

–11.0

Trade receivables from non-consolidated subsidiaries

13.2

13.2

Trade receivables from equity-accounted investments and other investments

27.7

19.1

Construction contracts with a net credit balance due from customers

94.7

103.1

Total trade receivables

1,094.1

998.9

Valuation allowances of €51.1 million (31 December 2016: €40.4 million) were recognised for trade receivables.

The breakdown of construction contracts that had not been completed by the reporting date is presented in > TABLE 075.

Construction contracts

 

075

in € million

2017

2016

Contract costs incurred and

 

 

recognised profits (less recognised losses)

2,300.1

2,247.8

less progress billings

–2,469.4

–2,445.4

Total

–169.3

–197.6

thereof gross amount due from customers for contract work

94.7

103.1

thereof gross amount due to customers for contract work

–264.0

–300.7

Construction contracts with a net credit balance due from customers are included in trade receivables. Construction contracts with a net debit balance due to customers are reported under other current liabilities (see note [35]). Advances received in respect of construction contracts for which no work had yet been carried out amounted to €19.2 million as at 31 December 2017 (31 December 2016: €28.3 million). Customer retentions relating to construction contracts came to €0.3 million (31 December 2016: €0.6 million).