Consolidated Statement of Income (Parenthetical) (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Noninterest income
Total OTTI losses (gains) recorded on debt securities	$ 64	$ 47	$ 49	$ 82
Total OTTI recorded as part of gross realized losses	76	82	114	133
Total recorded directly to OCI for non-credit-related impairment	(7)	(30)	(56)	(45)
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Equity Securities and Nonmarketable Equity Securities	40	43	84	58
Debt Securities [Member]
Noninterest income
Total OTTI losses (gains) recorded on debt securities	64	47	49	82
Total OTTI recorded as part of gross realized losses	71	77	105	127
Total recorded directly to OCI for non-credit-related impairment	$ (7)	$ (30)	$ (56)	$ (45)

The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis.

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