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OTHER ITEMS IMPACTING COMPARABILITY - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 instrument | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | $ 2 | $ 19 | $ 77
Workforce reduction charges |  |  | 8 |
Number of instruments with early redemption | instrument | 2 |  |  |
Offset By Recovery |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | 40 |  |
Discrete Commercial Claim |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | 28 |  |
Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | 13 | $ 8 | 13
Workforce reduction charges |  | 10 |  |
Severance | UNITED KINGDOM |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | 12 |  |
Acquisition-related Costs | UNITED KINGDOM |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  | $ 6 |  |
Discontinued Insurance Liability Program and Shutdown of Leased Locations |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and other, net |  |  |  | $ 44

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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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