Regulatory Matters (Narrative) (Details)	9 Months Ended
Sep. 30, 2017
Regulatory Matters [Abstract]
Common Equity Tier 1, phase period	4 years
Deductions and other adjustments percentage in first year	40.00%
Deductions and other adjustments percentage in after first year	20.00%
Common Equity Tier 1, capital conservation buffer ratio	0.625%
Common Equity Tier 1, capital conservation buffer phase period	4 years
Common Equity Tier 1, maximum capital conservation buffer ratio	2.50%

Tier 1 common equity capital conservation buffer ratio phase period defined by regulations.

No definition available.

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Tier 1 common equity capital conservation buffer ratio defined by regulations.

No definition available.

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Tier 1 common equity capital maximum conservation buffer ratio defined by regulations.

No definition available.

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Tier 1 common equity deductions and other adjustments percentage in after first year defined by regulations.

No definition available.

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Tier 1 common equity deductions and other adjustments percentage in first year defined by regulations.

No definition available.

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Tier 1 common equity capital phase period defined by regulations.

No definition available.

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No definition available.

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