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Investment securities (Tables)

12 Months Ended

Dec. 31, 2023

Investment securities

end of		2023		2022
Investment securities (CHF million)
Debt securities held-to-maturity		1,417		921
Debt securities available-for-sale		4		796
Total investment securities		1,421		1,717

Investment securities by type

Investment securities by type

		2023										2022
end of		Amortized cost		Allowance for credit losses		Gross unrealized gains		Gross unrealized losses		Fair value		Amortized cost		Allowance for credit losses		Gross unrealized gains		Gross unrealized losses		Fair value
Investment securities by type (CHF million)
Foreign governments		1,259		0		0		110		1,149		921		0		0		40		881
Corporate debt securities		158		0		0		7		151		0		0		0		0		0
Debt securities held-to-maturity		1,417	1	0		0		117		1,300		921	1	0		0		40		881
Corporate debt securities		4		0		0		0		4		952		0		0		156		796
Debt securities available-for-sale		4	2	0		0		0		4		952	2	0		0		156		796
1 Excludes accrued interest on debt securities held-to-maturity of CHF 19 million and CHF 10 million as of the end of 2023 and 2022, respectively, with no related allowance for credit losses. Accrued interest is reported in other assets in the consolidated balance sheet.
2 Excludes accrued interest on debt securities available-for-sale of CHF 0 million and CHF 1 million as of the end of 2023 and 2022, respectively. Accrued interest is reported in other assets in the consolidated balance sheet.

Gross unrealized losses on investment securities and the related fair value

Gross unrealized losses on debt securities and the related fair value

		Less than 12 months				12 months or more				Total
end of		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses
2022 (CHF million)
Corporate debt securities		374		58		404		98		778		156
Debt securities available-for-sale		374		58		404		98		778		156

Proceeds from sales, realized gains and realized losses from available-for-sale securities

Proceeds from sales, realized gains and realized losses from debt securities available-for-sale

in		2023		2022		2021
Sales of debt securities available-for-sale (CHF million)
Proceeds from sales		845		44		0
Realized losses		(4)		(6)		0

Amortized cost, fair value and average yield of debt securities

Amortized cost, fair value and average yield of debt securities

		Debt securities held-to-maturity						Debt securities available-for-sale
end of		Amortized cost		Fair value		Average yield (in %)		Amortized cost		Fair value		Average yield (in %)
2023 (CHF million)
Due within 1 year		0		0		0.00		4		4		33.55
Due from 1 to 5 years		1,417		1,300		3.66		0		0		0.00
Total debt securities		1,417	1	1,300		3.66		4	2	4		33.55
1 Excluded accrued interest on debt securities held-to-maturity of CHF 19 million.
2 Excluded accrued interest on debt securities available-for-sale of CHF 0 million.

X

- Definition

This item represents the schedule of investments in debt and equity securities that are classified as available-for-sale or held-to-maturity.

+ References

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This item represents the summary of investments in debt and equity securities that are classified as available-for-sale or held-to-maturity.

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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- Definition

Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
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For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
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