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Consolidated Statement of Changes in Equity Consolidated Statement of Changes in Equity (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Consolidated Statement of Change in Equity (Parenthetical) [Abstract]        
Common Stock, Dividends, Per Share, Declared $ 0.43 $ 0.41 $ 0.43 $ 0.41