Business developments (Details 2) (CHF) In Millions, unless otherwise specified	12 Months Ended	3 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Mar. 31, 2012 Aberdeen Asset Management PLC Sale	Feb. 29, 2012 Aberdeen Asset Management PLC Sale
Income/(loss) from discontinued operations
Income/(loss) from discontinued operations	0	(19)	169	170
Ownership percentage in Aberdeen Asset Management					9.80%

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

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