Notes to the Consolidated Financial Statements (14) Trade and other receivables in CHF million 22002200 2019 Trade receivables 2,074.8 2,076.6 Less adjustment for impairment of trade receivables (148.1) (134.7) Trade receivables net 11,,992266..77 11,,994411..99 Other receivables 108.5 108.6 Total trade and other receivables 22,,003355..22 22,,005500..55 Current portion 1,245.7 1,249.6 Non-current portion 789.5 800.9 Total trade and other receivables 22,,003355..22 22,,005500..55 Maturity of non-current portion 1 to < 2 years 410.6 400.0 2 to < 3 years 250.0 252.5 3 to < 4 years 104.3 113.0 4 to < 5 years 17.5 25.4 >= 5 years 7.1 10.0 Total non-current trade and other receivables 778899..55 880000..99 The closing loss allowances for trade receivables and receivables with significant financing component reconcile to the opening loss allowances as follows: in CHF million 22002200 2019 Opening balance of adjustment for the impairment of trade receivables at January 1 113344..77 112277..00 Additional impairment adjustment charged to income statement during year 40.1 41.4 Write-offs of trade receivables charged to impairment adjustment account during year (26.7) (33.7) Closing balance of adjustment for the impairment of trade receivables at December 31 114488..11 113344..77 in CHF million 22002200 2019 Currency denominations of the carrying amounts of trade and other receivables EUR 1,101.4 1,055.4 USD 224.9 247.3 Other 708.9 747.8 Total trade and other receivables 22,,003355..22 22,,005500..55 The Group provides for credit losses against trade receivables as follows: in CHF million 22002200 2019 Normal Doubtful TToottaall Normal Doubtful TToottaall Gross carrying amount receivables without significant financing component 726.9 71.5 779988..44 803.4 66.9 887700..33 Gross carrying amount receivables with significant financing component 1,359.5 25.4 11,,338844..99 1,292.4 22.5 11,,331144..99 Loss allowance provisions 58.3 89.8 114488..11 53.9 80.8 113344..77 2020 Financial Report | 45