pre_text: Global Financing Financial Position Key Metrics (1) Includes deferred initial direct costs which are eliminated in
  IBM’s consolidated results. (2) Includes intercompany mark-up, priced on an arm’s-length basis, on products purchased from the company’s product divisions which is eliminated in IBM’s consolidated results. (3) Entire amount eliminated for purposes of IBM’s consolidated results and therefore does not appear in the Consolidated Balance Sheet. (4) These assets, along with all other financing assets in this table, are
  leveraged at the value in the table using Global Financing debt. At December 31, 2019, substantially all financing assets were IT-related assets, and approximately 62 percent of the total external portfolio was with investment-grade clients with no direct exposure to consumers, an increase of 7 points year to year. This investment-grade percentage is based on the credit ratings of the companies in the portfolio. We have a long-standing practice of taking mitigation actions, in certain circumstances, to transfer credit risk to third parties, including credit insurance, financial guarantees, nonrecourse borrowings, transfers of receivables recorded as true sales in
  accordance with accounting guidance or sales of equipment under operating lease. Adjusting for the mitigation actions, the investment-grade content would increase to 67 percent, a decrease of 3 points year to year.
table: ($ in millions)
table: At December 31: 2019 2018
table: Cash and cash equivalents $ 1,697 $ 1,833
table: Net investment in sales-type and direct financing leases (1) 6,224 6,924
table: Equipment under operating leases— external clients (2) 238 444
table: Client loans 12,884 12,802
table: Total client financing assets 19,346 20,170
table: Commercial financing receivables 3,820 11,838
table: Intercompany financing receivables (3) (4) 3,870 4,873
table: Total assets $29,568 $41,320
table: Debt 24,727 31,227
table: Total equity $ 2,749 $ 3,470
question: Analyse this data from a financial earnings document. What is the increase / (decrease) in the cash from 2018 to 2019?