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Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Consolidated Balance Sheets |  |
Common stock, shares authorized | 150.0 | 150.0
Common stock, stated value (in dollars per share) | $ 0.75 | $ 0.75
Common stock, shares outstanding | 42.7 | 42.5

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