Retirement and Deferred Compensation Plans (Deferred Compensation Plans Liabilities and Investment) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Retirement and Deferred Compensation Plans [Abstract]
Total liabilities	$ 686	$ 841
Investments dedicated to fund liabilities	$ 206	$ 254

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_DeferredCompensationPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant