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Statements of Consolidated Equity (Shares) - shares
shares in Thousands
Total
Preferred Stock
Common Stock
Treasury Stock
Beginning balance at Dec. 31, 2019 382,136 440 386,099 (3,963)
Issued:        
Employee stock purchase plan 46 0 46 0
Long-term incentive plan 347 0 347 0
401(k) and profit sharing 165 0 165 0
Ending balance at Mar. 31, 2020 382,694 440 386,657 (3,963)
Beginning balance at Dec. 31, 2020 391,760 440 395,723 (3,963)
Issued:        
Employee stock purchase plan 55 0 55 0
Long-term incentive plan 212 0 212 0
401(k) and profit sharing 103 0 103 0
Ending balance at Mar. 31, 2021 392,130 440 396,093 (3,963)