Consolidated Statements Of Earnings Dec. 31, 2018 $ millions Dec. 31, 2017 FROM PRIOR REVIEW (NOA) Operating assets Operating liabilities Net operating assets (NOA) 23,530 5,448 18,082 19,404 4,817 14,587 FROM PRIOR REVIEW (NOPAT) Net operating profit after tax (NOPAT) 3,694 Return on net operating assets (RNOA) = NOPAT Average NOA 3,694 RNOA = 16,335 RNOA = 22.6% Return on equity (ROE) = 32.6% Proportion of ROE from RNOA = Proportion of ROE from RNOA =