What is the increase/ (decrease) in net income attributable to parent company from 2018 to 2019?
{"": {"2019": "", "2018": "(In millions)", "2017": ""}, "Net income attributable to parent company": {"2019": 1032, "2018": 1287, "2017": 802}, "As percentage of net revenues": {"2019": 10.8, "2018": 13.3, "2017": 9.6}}
net_income_attributable_to_parent_company_2019 = df["Net income attributable to parent company"]["2019"]
net_income_attributable_to_parent_company_2018 = df["Net income attributable to parent company"]["2018"]
answer = net_income_attributable_to_parent_company_2019 - net_income_attributable_to_parent_company_2018