pre_text: Note 18 Other non-current assets (1) These amounts have been pledged as security related to obligations for certain employee benefits and are not available for general use.
table: FOR THE YEAR ENDED DECEMBER 31 NOTE 2019 2018
table: Net assets of post-employment benefit plans 24 558 331
table: Long-term notes and other receivables 142 89
table: Derivative assets 26 200 68
table: Publicly-traded and privately-held investments 26 129 110
table: Investments (1) 128 114
table: Other 117 135
table: Total other non-current assets 1,274 847
question: Analyse this data from a financial earnings document. What is the change in net assets of post-employment benefit plans in 2019?