Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

Goodwill and Other Intangible Assets - by Business Segment (Details 1) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Goodwill [Line Items]
Total goodwill	$ 48,067	$ 48,175	$ 48,208	$ 48,188
Consumer & Community Banking
Goodwill [Line Items]
Total goodwill	30,951	31,048
Corporate & Investment Bank
Goodwill [Line Items]
Total goodwill	6,883	6,895
Commercial Banking
Goodwill [Line Items]
Total goodwill	2,862	2,863
Asset Management
Goodwill [Line Items]
Total goodwill	6,994	6,992
Corporate/Private Equity
Goodwill [Line Items]
Total goodwill	$ 377	$ 377