Stock-Based Incentive Compensation Plans (Total unrecognized compensation expense for all stock-based incentive compensation plans) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based compensation arrangement by share-based payment award [Line Items]
Expense	$ 85	$ 65	$ 59
Stock Options [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Expense	$ 11	$ 8	$ 8
Weighted average period (in years)	9 months 18 days	8 months 12 days	8 months 12 days
Performance Shares [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Expense	$ 19	$ 14	$ 14
Weighted average period (in years)	1 year 2 months 12 days	1 year 2 months 12 days	1 year 3 months 18 days
RSUs [Member]
Share-based compensation arrangement by share-based payment award [Line Items]
Expense	$ 55	$ 43	$ 37
Weighted average period (in years)	1 year 4 months 24 days	1 year 4 months 24 days	1 year 2 months 12 days

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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