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Long Term Retention Plan - Long Term Retention Program Accrued Compensation Expense (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]
Long term retention program	$ 84	$ 89	$ 130
LTRP 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	0	0	10
LTRP 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	0	2	23
LTRP 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	(2)	3	26
LTRP 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	(1)	2	12
LTRP 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	16	27	29
LTRP 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	19	29	30
LTRP 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	21	26	0
LTRP 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention program	$ 31	$ 0	$ 0

X

- Definition

Amount of cost capitalized for award under share-based payment arrangement.

+ References

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)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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