XML 43 R31.htm IDEA: XBRL DOCUMENT v3.22.2.2

BENEFIT PLANS: (Tables)

9 Months Ended

Sep. 30, 2022

Post retirement defined benefit plans and defined contribution plan

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

The components of net periodic benefit costs for the nine-month periods ended September 30, 2022 and 2021 are as follows (in millions):

​

​	​	​	​	​	​	​
(in millions)		2022			2021
Service cost	​	$	1.3	​	$	1.1
Interest cost	​		1.7	​		1.2
Expected return on plan assets	​		(2.9)	​		(2.6)
Amortization of prior service cost / (credit)	​		0.1	​		0.1
Amortization of net loss/(gain)	​		0.3	​		0.2
Net periodic benefit cost	​	$	0.5	​	$	(0.0)

Post-retirement Health care plans

Components of net periodic benefit costs

Schedule of the components of net periodic benefit costs

​

The components of net periodic benefit cost for the nine-month periods ended September 30, 2022 and 2021 are as follows (in millions):

​

​	​	​	​	​	​	​
(in millions)		2022			2021
Interest cost	​	$	1.2	​	$	1.3
Amortization of net loss (gain)	​		0.1	​		0.1
Amortization of prior service cost/ (credit)	​		(*)	​		(*)
Net periodic benefit cost	​	$	1.3	​	$	1.4

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=scco_DefinedBenefitPostretirementHealthCarePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: