Business Acquisitions.  In 2020, we acquired five businesses for an aggregate of approximately $205. In 2019, we acquired three businesses for an aggregate of approximately $20. Cash used by financing activities was $903 in 2020 and $2 billion in 2019. Net cash from financing activities includes proceeds received from debt and commercial paper issuances and employee stock options exercises. Our financing activities also include repurchases of common stock, payment of dividends and debt repayments. Dividends.  On March 4, 2020, our board of directors declared an increased quarterly dividend of $1.10 per share, the 23rd consecutive annual increase. Previously, the board had increased the quarterly dividend to $1.02 per share in March 2019. Cash dividends paid were $1.2 billion in 2020 and 2019. Share Repurchases.  Our board of directors from time to time authorizes management to repurchase outstanding shares of our common stock on the open market. We paid $587 and $231 in 2020 and 2019, respectively, to repurchase our outstanding shares. On December 31, 2020, 12.3 million shares remained authorized by our board of directors for repurchase, representing 4.3% of our total shares outstanding. Debt and Commercial Paper Issuances and Repayments.  In March 2020, we issued $4 billion of fixed-rate notes. The proceeds were used to repay $2.5 billion of fixed- and floating-rate notes that matured in May 2020 and for general corporate purposes, including the repayment of a portion of the borrowings under our commercial paper program. Fixed- and floating-rate notes totaling $2.5 billion mature in May 2021, and an additional $500 of fixed-rate notes mature in July 2021. We currently plan to repay these notes using a combination of cash on hand and the issuance of commercial paper. For additional information regarding our debt obligations, including scheduled debt maturities and interest rates, see Note K to the Consolidated Financial Statements in Item 8. On December 31, 2020, we had no commercial paper outstanding, but we maintain the ability to access the commercial paper market in the future. Separately, we have $5 billion in committed bank credit facilities for general corporate purposes and working capital needs and to support our commercial paper issuances. We also have an effective shelf registration on file with the Securities and Exchange Commission that allows us to access the debt markets. We emphasize the efficient conversion of net earnings into cash and the deployment of that cash to maximize shareholder returns. As described below, we use free cash flow from operations and return on invested capital (ROIC) to measure our performance in these areas. While we believe these metrics provide useful information, they are not defined operating measures under U.S. generally accepted accounting principles (GAAP), and there are limitations associated with their use. Our calculation of these metrics may not be completely comparable to similarly titled measures of other companies due to potential differences in the method of calculation. As a result, the use of these metrics should not be considered in isolation from, or as a substitute for, other GAAP measures. Free Cash Flow.  We define free cash flow from operations as net cash provided by operating activities less capital expenditures. We believe free cash flow from operations is a useful measure for investors because it portrays our ability to generate cash from our businesses for purposes such as 44 FINANCING ACTIVITIES NON-GAAP FINANCIAL MEASURES