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Equity - Share-based Payments (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based compensation expense
Pre-tax compensation expense	$ 33	$ 29	$ 23
Income tax benefit	(3)	(2)	(2)
Total share-based compensation expense, net of income taxes	$ 30	27	21
Share-based Payment Arrangement, Disclosure [Abstract]
Shares authorized under Stock Incentive Plan (in shares)	5.4
Shares available for future grants under Stock Incentive Plan (in shares)	5.4
Stock options
Share-based compensation expense
Pre-tax compensation expense	$ 4	4	3
Income tax benefit	0	0	0
Total share-based compensation expense, net of income taxes	4	4	3
Restricted Stock Units ("RSUs") | Employee
Share-based compensation expense
Pre-tax compensation expense	15	13	12
Income tax benefit	(2)	(1)	(1)
Total share-based compensation expense, net of income taxes	13	12	11
Performance shares and other share-based awards
Share-based compensation expense
Pre-tax compensation expense	14	12	8
Income tax benefit	(1)	(1)	(1)
Total share-based compensation expense, net of income taxes	$ 13	$ 11	$ 7

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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