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CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Equity    
Common stock, par or stated value per share (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 4,000,000,000 4,000,000,000
Common stock, shares, issued (in shares) 873,064,219 867,829,119
Common stock, shares, outstanding (in shares) 863,039,097 867,829,119
Common shares at average cost (in shares) 10,375,654