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Shareholders' Equity Share repurchase (Details) - $ / shares shares in Millions |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jan. 23, 2020 | Oct. 24, 2019 | Jul. 25, 2019 | Apr. 25, 2019 | Jan. 24, 2019 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 0.28 | $ 0.28 | $ 0.28 | $ 0.28 |
Treasury Stock, Shares, Acquired |  |  |  |  |  | 1.5
Treasury Stock Acquired, Average Cost Per Share |  |  |  |  |  | $ 35.00
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased |  |  |  |  |  | 1.4
Subsequent Event [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.28 |  |  |  |  |

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