- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents commitments outstanding as of the balance sheet date which obligate or represent potential claims against the assets of the Company relating to, for example, the extension of credit. Further, commitments generally represent off balance sheet arrangements that obligate the entity to deliver assets or services or enter into another obligation in the future.

+ References+ Details

Summary of Significant Commitments (Detail) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Long-term Purchase Commitment [Line Items]
Commitments	$ 5,096
Commitments to Extend Credit
Long-term Purchase Commitment [Line Items]
Commitments	45,099	43,677	43,405
Financial Standby Letter of Credit
Long-term Purchase Commitment [Line Items]
Commitments	5,096	5,516	6,212
Forward Contracts
Long-term Purchase Commitment [Line Items]
Commitments	2,210	6,389	2,707
Noncancelable Lease Obligations
Long-term Purchase Commitment [Line Items]
Commitments	840	869	875
Private Equity Funds
Long-term Purchase Commitment [Line Items]
Commitments	184	193	159
Purchase Commitment
Long-term Purchase Commitment [Line Items]
Commitments	122	64	54
Capital Additions
Long-term Purchase Commitment [Line Items]
Commitments	49	48	33
Capital Lease Obligations
Long-term Purchase Commitment [Line Items]
Commitments	$ 19	$ 32	$ 42