Equity (Compensation Expense Related to Stock-Based Compensation - Related to Phantom Stock-Based Awards) (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]
Compensation Expense	$ 184	$ 173	$ 127
Income tax benefit	39	36	27
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	7	9	6
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	108	98	63
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 69	$ 66	$ 58

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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

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