Common Stock Common Stock (Narrative) (Details) (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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Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] | |||
Common stock, shares authorized | 120,000,000us-gaap_CommonStockSharesAuthorized | 100,000,000us-gaap_CommonStockSharesAuthorized | |
Common stock dividend rate percentage | 5.00%cbsh_CommonStockDividendRatePercentage | ||
Common stock, par value | $ 5.00us-gaap_CommonStockParOrStatedValuePerShare | $ 5.00us-gaap_CommonStockParOrStatedValuePerShare | |
Antidilutive securities excluded from computation of earnings per share (in shares) | 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount |
Shares available for purchase under the current Board authorization | 5,000,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased | ||
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased | 1,898,007us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased |
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- Definition
Common stock dividend rate percentage. No definition available.
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- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Definition
The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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