18 Contract liabilities

The carrying amount of current and non-current contract liabilities decreased year-on-year by EUR 0.2 billion to EUR 2.1 billion. These mainly comprise deferred revenues. Revenue of EUR 1,277 million from contract liabilities that were still outstanding as of December 31, 2018 was realized in the reporting year. Of the total of contract liabilities, EUR 1,608 million (December 31, 2018: EUR 1,720 million) is due within one year.