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Long Term Retention Plan - Outstanding Long Term Retention Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
LTRP 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value			$ 13
Weighted-average remaining contractual life (years)			29 days
LTRP 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value		$ 15	$ 35
Weighted-average remaining contractual life (years)		29 days	7 months 13 days
LTRP 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 7	$ 24	$ 41
Weighted-average remaining contractual life (years)	29 days	6 months 29 days	1 year 1 month 17 days
LTRP 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 5	$ 14	$ 23
Weighted-average remaining contractual life (years)	6 months 29 days	1 year 29 days	1 year 7 months 20 days
LTRP 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 35	$ 84	$ 133
Weighted-average remaining contractual life (years)	1 year 29 days	1 year 6 months 29 days	2 years 1 month 20 days
LTRP 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 45	$ 100	$ 153
Weighted-average remaining contractual life (years)	1 year 6 months 29 days	2 years 1 month 2 days	2 years 8 months 1 day
LTRP 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 39	$ 85
Weighted-average remaining contractual life (years)	2 years 29 days	2 years 6 months 29 days
LTRP 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic value	$ 86
Weighted-average remaining contractual life (years)	2 years 6 months 29 days

X

- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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- Definition

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