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.

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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Period Type:	instant

- Details

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- Details

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- Details

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Employee benefits - Plans target allocation by asset category (Details)	Dec. 31, 2020	Dec. 31, 2019
Popular Related Securities
Defined Benefit Plan Disclosure [Line Items]
Define benefit plan actual asset allocations	1.00%	1.00%
Popular Related Securities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	5.00%
Popular Related Securities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	0.00%
Equity
Defined Benefit Plan Disclosure [Line Items]
Define benefit plan actual asset allocations	38.00%	36.00%
Equity \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	70.00%
Equity \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	0.00%
Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Define benefit plan actual asset allocations	60.00%	62.00%
Debt Securities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	100.00%
Debt Securities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	0.00%
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Define benefit plan actual asset allocations	1.00%	1.00%
Cash and Cash Equivalents \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	100.00%
Cash and Cash Equivalents \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets target allocation	0.00%