Preferred stock authorized (in shares)

  
Stock Options Award ModificationIn the first quarter of 2020, we modified the terms of stock option awards granted to 123 employees. Specifically, we extended the term for certain stock options that were scheduled to expire in the first quarter of 2020 as applicable employees were not permitted to exercise these awards due to our announcement in February 2020 that our previously issued financial statements should no longer be relied upon. The stock options were extended in order to allow impacted employees to exercise their stock option awards for a brief period once we became current with our SEC reporting obligations, which occurred in March 2020. As a result of the modifications, we recognized an additional $8 million of stock compensation expense during the first quarter of 2020.Cash DividendsTotal cash dividends declared per share for 2021, 2020, and 2019 were $1.085, $0.955 and $0.850, respectively.A quarterly dividend of $0.245 per share ($0.98 on an annualized basis) was declared in February 2021 and was paid in April 2021. Quarterly dividends of $0.28 per share ($1.12 on an annualized basis) were declared in May and July of 2021 and were paid in July and October of 2021, respectively. Our Board of Directors declared a quarterly dividend of $0.28 per share in November of 2021, which was paid in January of 2022.Stock Repurchase ProgramsAs authorized by the Board of Directors, we repurchase our stock depending on our cash flows, net debt level and market conditions. In July 2012, the Board of Directors authorized the repurchase of up to $2.0 billion of our common stock. The Board of Directors increased this authority by an additional $1.5 billion in each of November 2016 and February 2018, by an additional $2.0 billion in November 2018 and by an additional $1.5 billion in October 2020. We repurchased 7.3 million shares under this authority pursuant to Rule 10b5-1 plans for $600 million in cash in 2021, 6.3 million shares under this authority pursuant to a Rule 10b5-1 plan for $500 million in cash in 2020 and 16.5 million shares under this authority pursuant to Rule 10b5-1 plans and otherwise for $1.3 billion in cash in 2019. We had $1.3 billion of purchase authority available as of December 31, 2021.  Accelerated Share Repurchase Agreement In December 2018, we entered into a $300 million accelerated share repurchase agreement (ASR Agreement) with an investment bank. We funded the ASR Agreement with available cash. The ASR Agreement was executed pursuant to the 2012 Repurchase Authorization described above. Under the ASR Agreement, we received 3.6 million shares upon execution. Based on the volume-weighted average price of our common stock during the term of the ASR Agreement, we received an additional 0.6 million shares from the investment bank at settlement in May 2019.OtherIn addition to common stock, our authorized capital structure includes 100 million shares of preferred stock, no par value. As of December 31, 2021 and 2020, no shares of preferred stock were outstanding.NOTE 9

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| ACCUMULATED OTHER COMPREHENSIVE INCOME |

Comprehensive income includes all changes in stockholders’ equity that do not arise from transactions with stockholders, and consists of net income, CTA, certain gains and losses from other postretirement employee benefit (OPEB) plans and gains and losses on cash flow hedges. 80
