Impacts of Derivative Financial Instruments on the Consolidated Statements of Income/(Loss) and the Consolidated Statements of Shareholders' Equity (Parenthetical) (Detail) (Cash Flow Hedging, USD $) In Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Reclassified in pre-tax gains from AOCI into net interest income	$ 103	[1]	$ 119	[2]	$ 321	[1]	$ 370	[2]
Interest Income (Expense), Net
Reclassified in pre-tax gains from AOCI into net interest income	$ 56		$ 35		$ 146		$ 88

[1] During the three and nine months ended September 30, 2011, the Company reclassified $56 million and $146 million, respectively, in pre-tax gains from AOCI into net interest income. These gains related to hedging relationships that have been previously terminated or de-designated.

[2] During the three and nine months ended September 30, 2010, the Company reclassified $35 million and $88 million, respectively, in pre-tax gains from AOCI into net interest income. These gains related to hedging relationships that have been previously terminated or de-designated.