Business Segments - Net Revenues and Pre-tax Earnings for Each Geographic Region (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Net revenues	$ 9,328	$ 10,090
Pre-tax earnings/(loss)	3,021	3,373
Pre-tax earnings/(loss) - subtotal	3,021	3,374
Percentage of total net revenue	100.00%	100.00%
Percentage of total pre-tax earnings - subtotal	100.00%	100.00%
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	5,497	6,005
Pre-tax earnings/(loss)	1,690	1,851
Percentage of total net revenue	59.00%	60.00%
Percentage of total pre-tax earnings - subtotal	56.00%	55.00%
Europe, Middle East and Africa [Member]
Segment Reporting Information [Line Items]
Net revenues	2,639	2,421
Pre-tax earnings/(loss)	972	907
Percentage of total net revenue	28.00%	24.00%
Percentage of total pre-tax earnings - subtotal	32.00%	27.00%
Asia (includes Australia and New Zealand) [Member]
Segment Reporting Information [Line Items]
Net revenues	1,192	1,664
Pre-tax earnings/(loss)	359	616
Percentage of total net revenue	13.00%	16.00%
Percentage of total pre-tax earnings - subtotal	12.00%	18.00%
Corporate [Member]
Segment Reporting Information [Line Items]
Pre-tax earnings/(loss)		$ (1)

Represents the percentage total pre-tax earnings allocated to this geographic region.

No definition available.

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- Definition

Represents the percentage total net revenues allocated to this geographic region.

+ References

No definition available.

+ Details

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- Definition

Subtotal of income or loss for geographic segments before, income taxes, preferred stock dividends and extraordinary items. Geographic segments include Americas, EMEA and Asia, but exclude Corporate.

+ References

No definition available.

+ Details

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

+ Details

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income after deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

No definition available.

+ Details

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