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Guarantees and commitments (Tables)

12 Months Ended

Dec. 31, 2017

Guarantees

end of		Maturity less than 1 year		Maturity between 1 to 3 years		Maturity between 3 to 5 years		Maturity greater than 5 years		Total gross amount		Total net amount	¹	Carrying value		Collateral received
2017 (CHF million)
Credit guarantees and similar instruments		1,817		520		314		435		3,086		2,837		12		1,603
Performance guarantees and similar instruments		4,931		1,639		373		200		7,143		6,216		44		3,012
Derivatives ²		15,520		6,860		1,397		727		24,504		24,504		403		–	³
Other guarantees		4,461		1,006		708		503		6,678		6,673		47		3,833
Total guarantees		26,729		10,025		2,792		1,865		41,411		40,230		506		8,448
2016 (CHF million)
Credit guarantees and similar instruments		1,962		500		262		409		3,133		2,913		13		2,043
Performance guarantees and similar instruments		5,109		1,571		194		240		7,114		6,124		76		3,090
Derivatives ²		15,864		3,377		3,590		976		23,807		23,807		684		–	³
Other guarantees		3,460		888		531		581		5,460		5,456		44		3,668
Total guarantees		26,395		6,336		4,577		2,206		39,514		38,300		817		8,801
1 Total net amount is computed as the gross amount less any participations.
2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Group had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments.
3 Collateral for derivatives accounted for as guarantees is not significant.

Lease commitments

Lease commitments

Lease commitments (CHF million)
2018		570
2019		541
2020		498
2021		388
2022		353
Thereafter		2,884
Future operating lease commitments		5,234
Less minimum non-cancellable sublease rentals		216
Total net future minimum lease commitments		5,018

Rental expenses for operating leases

Rental expense for operating leases

in		2017		2016		2015
Rental expense for operating leases (CHF million)
Minimum rental expense		575		550		558
Sublease rental income		(65)		(89)		(92)
Total net expenses for operating leases		510		461		466

Other commitments

Other commitments

end of		Maturity less than 1 year		Maturity between 1 to 3 years		Maturity between 3 to 5 years		Maturity greater than 5 years		Total gross amount		Total net amount	¹	Collateral received
2017 (CHF million)
Irrevocable commitments under documentary credits		4,976		113		1		1		5,091		5,000		3,218
Irrevocable loan commitments ²		24,296		33,649		40,425		8,031		106,401		101,270		42,307
Forward reverse repurchase agreements		12		0		0		0		12		12		12
Other commitments		219		13		11		104		347		347		0
Total other commitments		29,503		33,775		40,437		8,136		111,851		106,629		45,537
2016 (CHF million)
Irrevocable commitments under documentary credits		4,356		0		0		0		4,356		4,281		2,748
Irrevocable loan commitments ²		30,382		34,464		44,523		7,606		116,975		113,016		46,068
Forward reverse repurchase agreements		84		0		0		0		84		84		84
Other commitments		487		24		75		51		637		637		0
Total other commitments		35,309		34,488		44,598		7,657		122,052		118,018		48,900
1 Total net amount is computed as the gross amount less any participations.
2 Irrevocable loan commitments do not include a total gross amount of CHF 108,663 million and CHF 95,743 million of unused credit limits as of December 31, 2017 and 2016, respectively, which were revocable at the Group's sole discretion upon notice to the client.

Guarantees

end of		Maturity less than 1 year		Maturity between 1 to 3 years		Maturity between 3 to 5 years		Maturity greater than 5 years		Total gross amount		Total net amount	¹	Carrying value		Collateral received
2017 (CHF million)
Credit guarantees and similar instruments		1,820		520		314		435		3,089		2,840		12		1,603
Performance guarantees and similar instruments		4,931		1,639		373		200		7,143		6,216		44		3,012
Derivatives ²		15,520		6,860		1,397		727		24,504		24,504		403		–	³
Other guarantees		4,461		1,006		708		503		6,678		6,673		47		3,833
Total guarantees		26,732		10,025		2,792		1,865		41,414		40,233		506		8,448
2016 (CHF million)
Credit guarantees and similar instruments		1,962		501		262		403		3,128		2,908		13		2,043
Performance guarantees and similar instruments		5,109		1,571		194		240		7,114		6,124		76		3,090
Derivatives ²		15,864		3,377		3,590		976		23,807		23,807		684		–	³
Other guarantees		3,460		888		565		581		5,494		5,490		44		3,668
Total guarantees		26,395		6,337		4,611		2,200		39,543		38,329		817		8,801
1 Total net amount is computed as the gross amount less any participations.
2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Bank had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments.
3 Collateral for derivatives accounted for as guarantees is not significant.

Lease commitments

Lease commitments

Lease commitments (CHF million)
2018		504
2019		472
2020		429
2021		323
2022		295
Thereafter		2,139
Future operating lease commitments		4,162
Less minimum non-cancellable sublease rentals		216
Total net future minimum lease commitments		3,946

Rental expenses for operating leases

Rental expense for operating leases

in		2017		2016		2015
Rental expense for operating leases (CHF million)
Minimum rental expense		528		550		558
Sublease rental income		(65)		(89)		(92)
Total net expenses for operating leases		463		461		466

Other commitments

Other commitments

end of		Maturity less than 1 year		Maturity between 1 to 3 years		Maturity between 3 to 5 years		Maturity greater than 5 years		Total gross amount		Total net amount	¹	Collateral received
2017 (CHF million)
Irrevocable commitments under documentary credits		4,976		113		1		1		5,091		5,000		3,218
Irrevocable loan commitments		24,296		33,649		40,425		8,031		106,401	²	101,270		42,307
Forward reverse repurchase agreements		12		0		0		0		12		12		12
Other commitments		219		13		11		104		347		347		0
Total other commitments		29,503		33,775		40,437		8,136		111,851		106,629		45,537
2016 (CHF million)
Irrevocable commitments under documentary credits		4,356		0		0		0		4,356		4,281		2,748
Irrevocable loan commitments		30,382		34,464		44,523		7,606		116,975	²	113,016		46,068
Forward reverse repurchase agreements		84		0		0		0		84		84		84
Other commitments		486		24		75		51		636		636		0
Total other commitments		35,308		34,488		44,598		7,657		122,051		118,017		48,900
1 Total net amount is computed as the gross amount less any participations.
2 Irrevocable loan commitments do not include a total gross amount of CHF 108,665 million and CHF 95,745 million of unused credit limits as of December 31, 2017 and 2016, respectively, which were revocable at the Bank's sole discretion upon notice to the client.