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.

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- 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

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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

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Employee Benefit Plans (Pension Plan Asset Allocation and Target Allocation) (Detail)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. Equities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		34.00%	40.00%
Non-U.S. Equities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		18.00%	19.00%
Fixed Income
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		47.00%	32.00%
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		1.00%	1.00%
Company Stock
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		0.00%	5.00%
Real Estate
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Plan asset		0.00%	3.00%
Scenario Forecast \| U.S. Equities \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	25.00%
Scenario Forecast \| U.S. Equities \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	40.00%
Scenario Forecast \| Non-U.S. Equities \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	10.00%
Scenario Forecast \| Non-U.S. Equities \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	20.00%
Scenario Forecast \| Fixed Income \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	45.00%
Scenario Forecast \| Fixed Income \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	65.00%
Scenario Forecast \| Cash and Cash Equivalents \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	2.00%
Scenario Forecast \| Cash and Cash Equivalents \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	10.00%
Scenario Forecast \| Company Stock
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	0.00%
Scenario Forecast \| Real Estate
Defined Benefit Plan Disclosure [Line Items]
Defined benefit Plan, Target allocation plan asset	0.00%