Changes in organization and disposals - Increase of stake in and consolidation of UBS Securities China (Narrative) (Detail) $ in Millions	Dec. 31, 2018 USD ($)
Disclosure Of Stake In UBS Securities China [Line Items]
Percentage of stake in UBS Securities China before acquisition	24.99%
Percentage of stake in UBS Securities China after acquisition	51.00%
Percentage of additional stake in UBS Securities China aquired in transaction	26.01%
Acquisition cost of stake increase in UBS Securities China	$ 125
Goodwill recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	102
Other net assets recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	278
Equity attributable to non-controlling interests recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	$ 136
UBS AG
Disclosure Of Stake In UBS Securities China [Line Items]
Percentage of stake in UBS Securities China before acquisition	24.99%
Percentage of stake in UBS Securities China after acquisition	51.00%
Percentage of additional stake in UBS Securities China aquired in transaction	26.01%
Acquisition cost of stake increase in UBS Securities China	$ 125
Goodwill recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	102
Other net assets recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	278
Equity attributable to non-controlling interests recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China	$ 136

The amount represents the acquisition amount of stake in UBS Securities China for the acquistion of additional stake.

No definition available.

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- Definition

The amount represents the additional percentage of stake in UBS Securities China aquired in the transaction.

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No definition available.

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sent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The amount represents the goodwill recognized upon consoldation resulting from the acquisition of stake increase in UBS Securities China.

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No definition available.

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- Definition

The amount represents the equity attributable to non-controlling interests recognized upon consolidation resulting from the acquisition of stake increase in UBS Securities China.

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No definition available.

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- Definition

The amount represents the percentage of stake in UBS Securities China after the acquistion of additional stake.

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No definition available.

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- Definition

The amount represents the percentage of stake in UBS Securities China before the acquistion of additional stake.

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No definition available.

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