Consolidated Statement Of Changes In Equity (Parenthetical) (USD $)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Statement of Stockholders' Equity [Abstract] | |||
Cash dividends declared, per share | $ 1.22 | $ 1.18 | $ 1.14 |