Restrictions on Cash and Due from Banks, Securities, Loans and Dividends	12 Months Ended
Dec. 31, 2011
Restrictions on Cash and Due from Banks, Securities, Loans and Dividends [Abstract]
Restrictions on Cash and Due from Banks, Securities, Loans and Dividends	Note 17—Restrictions on Cash and Due from Banks, Securities, Loans and Dividends Federal Reserve Board regulations require the Bank to maintain reserve balances based on the types and amounts of deposits received. The required reserve balances were $909 million and $446 million at December 31, 2011 and 2010, respectively. As of December 31, 2011 and 2010, loans of $38.7 billion and $33.7 billion, respectively, were pledged as collateral for borrowings, including those to the Federal Reserve Bank and FHLB, to secure public and trust department deposits, and for repurchase agreements as required by contract or law. See Note 2 to these consolidated financial statements for the carrying amounts of securities that were pledged as collateral. The Federal Reserve Act restricts the amount and the terms of both credit and non-credit transactions between a bank and its non-bank affiliates. Such transactions may not exceed 10 percent of the bank’s capital and surplus (which for this purpose represents Tier 1 and Tier 2 capital, as calculated under the risk-based capital guidelines, plus the balance of the allowance for loan losses excluded from Tier 2 capital) with any single non-bank affiliate and 20 percent of the bank’s capital and surplus with all its non-bank affiliates. Transactions that are extensions of credit may require collateral to be held to provide added security to the bank. See Note 18 to these consolidated financial statements for further discussion of risk-based capital. At December 31, 2011, $335 million remained outstanding on 25 Bankers Commercial Corporation notes payable to the Bank. The respective notes were fully collateralized with equipment lease assets pledged by Bankers Commercial Corporation. The declaration of a dividend by the Bank to the Company is subject to the approval of the Office of the Comptroller of the Currency (OCC) if the total of all dividends declared in the current calendar year plus the preceding two years exceeds the Bank’s total net income in the current calendar year plus the preceding two years. The payment of dividends is also limited by minimum capital requirements imposed on national banks by the OCC.

Restrictions on Cash and Due from Banks, Securities, Loans and Dividends

12 Months Ended

Dec. 31, 2011

Restrictions on Cash and Due from Banks, Securities, Loans and Dividends [Abstract]

Restrictions on Cash and Due from Banks, Securities, Loans and Dividends

Note 17—Restrictions on Cash and Due from Banks, Securities, Loans and Dividends

Federal Reserve Board regulations require the Bank to maintain reserve balances based on the types and amounts of deposits received. The required reserve balances were $909 million and $446 million at December 31, 2011 and 2010, respectively.

As of December 31, 2011 and 2010, loans of $38.7 billion and $33.7 billion, respectively, were pledged as collateral for borrowings, including those to the Federal Reserve Bank and FHLB, to secure public and trust department deposits, and for repurchase agreements as required by contract or law. See Note 2 to these consolidated financial statements for the carrying amounts of securities that were pledged as collateral.

The Federal Reserve Act restricts the amount and the terms of both credit and non-credit transactions between a bank and its non-bank affiliates. Such transactions may not exceed 10 percent of the bank’s capital and surplus (which for this purpose represents Tier 1 and Tier 2 capital, as calculated under the risk-based capital guidelines, plus the balance of the allowance for loan losses excluded from Tier 2 capital) with any single non-bank affiliate and 20 percent of the bank’s capital and surplus with all its non-bank affiliates. Transactions that are extensions of credit may require collateral to be held to provide added security to the bank. See Note 18 to these consolidated financial statements for further discussion of risk-based capital. At December 31, 2011, $335 million remained outstanding on 25 Bankers Commercial Corporation notes payable to the Bank. The respective notes were fully collateralized with equipment lease assets pledged by Bankers Commercial Corporation.

The declaration of a dividend by the Bank to the Company is subject to the approval of the Office of the Comptroller of the Currency (OCC) if the total of all dividends declared in the current calendar year plus the preceding two years exceeds the Bank’s total net income in the current calendar year plus the preceding two years. The payment of dividends is also limited by minimum capital requirements imposed on national banks by the OCC.