Level 1 (Notes)	6 Months Ended
Jun. 30, 2015
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	Capital Purchase Program ("CPP") Warrants As of June 30, 2015 and December 31, 2014, respectively, the Company has 5.7 million and 7.2 million CPP warrants outstanding and exercisable. CPP warrant exercises were 1.0 million and 11.0 million during the three months ended June 30, 2015 and 2014, respectively and 1.6 million and 20.8 million during the six months ended June 30, 2015 and 2014, respectively. The declaration of common stock dividends by the Company in excess of a threshold triggers a provision in the Company's warrant agreement with The Bank of New York Mellon resulting in adjustments to the CPP warrant exercise price. Accordingly, the declaration of a common stock dividend during the three months ended June 30, 2015 resulted in an adjustment to the CPP warrant exercise price. The CPP warrant exercise price was $9.329 as of June 30, 2015 and $9.388 as of December 31, 2014. Equity Repurchase Program As of June 30, 2015, the Company has $479 remaining under its existing equity repurchase program authorization. In July 2015, the Board of Directors approved a $1.6 billion increase in and extension of the Company's authorized equity repurchase program, bringing the total authorization for equity repurchases to $4.375 billion for the period January 1, 2014 through December 31, 2016. During the three and six months ended June 30, 2015, the Company repurchased 6.0 million and 12.1 million common shares, respectively, for $250 and $500, respectively. During the period July 1, 2015 to July 22, 2015, the Company repurchased 1.6 million common shares for $71.

Level 1 (Notes)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Note Disclosure [Text Block]

Capital Purchase Program ("CPP") Warrants

As of June 30, 2015 and December 31, 2014, respectively, the Company has 5.7 million and 7.2 million CPP warrants outstanding and exercisable. CPP warrant exercises were 1.0 million and 11.0 million during the three months ended June 30, 2015 and 2014, respectively and 1.6 million and 20.8 million during the six months ended June 30, 2015 and 2014, respectively.

The declaration of common stock dividends by the Company in excess of a threshold triggers a provision in the Company's warrant agreement with The Bank of New York Mellon resulting in adjustments to the CPP warrant exercise price. Accordingly, the declaration of a common stock dividend during the three months ended June 30, 2015 resulted in an adjustment to the CPP warrant exercise price. The CPP warrant exercise price was $9.329 as of June 30, 2015 and $9.388 as of December 31, 2014.

Equity Repurchase Program

As of June 30, 2015, the Company has $479 remaining under its existing equity repurchase program authorization. In July 2015, the Board of Directors approved a $1.6 billion increase in and extension of the Company's authorized equity repurchase program, bringing the total authorization for equity repurchases to $4.375 billion for the period January 1, 2014 through December 31, 2016.

During the three and six months ended June 30, 2015, the Company repurchased 6.0 million and 12.1 million common shares, respectively, for $250 and $500, respectively. During the period July 1, 2015 to July 22, 2015, the Company repurchased 1.6 million common shares for $71.