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Retirement Plans (Schedule of Valuation of the Company's Pension Plan Assets by Pricing Categories) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 420	$ 543
(Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	46	55
(Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	319	389
(Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	55	99
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18	21
Cash and cash equivalents | (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18	21
Cash and cash equivalents | (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents | (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	120	147
Equity securities | (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21	28
Equity securities | (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	99	119
Equity securities | (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	153	204
Corporate debt securities | (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	2
Corporate debt securities | (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	151	202
Corporate debt securities | (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	129	171
Other | (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	4
Other | (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	69	68
Other | (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 55	$ 99

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+ References

No definition available.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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