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Retirement Benefits (Schedule of Target Plan Allocation) (Details)	Dec. 31, 2022	Dec. 31, 2021
United States | Equity funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		41.00%
United States | Equity funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		62.00%
United States | Fixed income funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		31.00%
United States | Fixed income funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		47.00%
United States | Real estate funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		1.00%
United States | Real estate funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		1.00%
United States | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		7.00%
United States | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		10.00%
Int’l | Equity funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		20.00%
Int’l | Equity funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		50.00%
Int’l | Fixed income funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		35.00%
Int’l | Fixed income funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		100.00%
Int’l | Hedge funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		0.00%
Int’l | Hedge funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		7.00%
Int’l | Real estate funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		0.00%
Int’l | Real estate funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		10.00%
Int’l | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		0.00%
Int’l | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)		34.00%
Scenario, Forecast | United States
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	100.00%
Scenario, Forecast | United States | Equity funds and securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	52.00%
Scenario, Forecast | United States | Equity funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	41.00%
Scenario, Forecast | United States | Equity funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	62.00%
Scenario, Forecast | United States | Fixed income funds and securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	39.00%
Scenario, Forecast | United States | Fixed income funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	31.00%
Scenario, Forecast | United States | Fixed income funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	47.00%
Scenario, Forecast | United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	0.00%
Scenario, Forecast | United States | Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	1.00%
Scenario, Forecast | United States | Real estate funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	1.00%
Scenario, Forecast | United States | Real estate funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	1.00%
Scenario, Forecast | United States | Other
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	8.00%
Scenario, Forecast | United States | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	7.00%
Scenario, Forecast | United States | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	10.00%
Scenario, Forecast | Int’l
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	100.00%
Scenario, Forecast | Int’l | Equity funds and securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	22.00%
Scenario, Forecast | Int’l | Equity funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	20.00%
Scenario, Forecast | Int’l | Equity funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	50.00%
Scenario, Forecast | Int’l | Fixed income funds and securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	53.00%
Scenario, Forecast | Int’l | Fixed income funds and securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	30.00%
Scenario, Forecast | Int’l | Fixed income funds and securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	100.00%
Scenario, Forecast | Int’l | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	7.00%
Scenario, Forecast | Int’l | Hedge funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	0.00%
Scenario, Forecast | Int’l | Hedge funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	7.00%
Scenario, Forecast | Int’l | Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	5.00%
Scenario, Forecast | Int’l | Real estate funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	0.00%
Scenario, Forecast | Int’l | Real estate funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	10.00%
Scenario, Forecast | Int’l | Other
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	13.00%
Scenario, Forecast | Int’l | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	0.00%
Scenario, Forecast | Int’l | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations (in percentage)	34.00%

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+ References

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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=123450688&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=123447040&loc=d3e1928-114920

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