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Long Term Retention Plan - Outstanding Long Term Retention Plans (Details) - USD ($) $ in Millions | 12 Months Ended
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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 |  |

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- 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 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References No definition available. + Details
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