Annual report pursuant to Section 13 and 15(d)

Statements of Consolidated Changes in Equity (Parenthetical)

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Statements of Consolidated Changes in Equity (Parenthetical) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]        
Common Stock, Dividends, Per Share, Declared $ 0.06 $ 0.27 $ 0.05 $ 0