pre_text: 9. Available-for-Sale Debt Investments and Equity Investments The following table summarizes our available-for-sale debt investments and equity investments (in millions): (1) We held equity interests in certain private equity funds of $0.6 billion as of July 27, 2019 which are accounted for under the NAV practical expedient following the adoption of ASU 2016-01, Financial Instruments, starting in the first quarter of fiscal 2019.
table: July 27, 2019 July 28, 2018
table: Available-for-sale debt investments $21,660 $37,009
table: Marketable equity securities 3 605
table: Total investments 21,663 37,614
table: Non-marketable equity securities included in other assets (1) 1,113 978
table: Equity method investments included in other assets 87 118
table: Total $22,863 $38,710
question: Analyse this data from a financial earnings document. What was the change in the Equity method investments included in other assets between 2018 and 2019?