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Regulatory Restrictions and Capital Adequacy Regulatory Restrictions and Capital Adequacy - Additional Items (Details) $ in Millions | May 21, 2018 USD ($)
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Additional Items [Abstract] |
Subordinated Long-term Debt, Noncurrent | $ 100

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- Definition Additional Items [Abstract] + References No definition available. + Details
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Balance Type: | na
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- Definition Carrying value as of the balance sheet date of collateralized/uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Subordinated debt places a lender in a lien position behind the primary lender of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | credit
Period Type: | instant