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LEASES - Narrative (Details) $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) ft² | Dec. 31, 2022 USD ($) ft² | Dec. 31, 2020 USD ($) ft² | Apr. 30, 2019 USD ($) ft²
Lessee, Lease, Description [Line Items] |  |  |  |
Operating lease liabilities | $ | $ 768 | $ 618 |  |
New York City |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Lease term |  |  |  | 15 years
Area of property, option to decrease (in sq. ft.) |  | 89,000 |  |
Syracuse, NY |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of property (in sq. ft.) | 143,000 |  |  |
Lease term, additional | 5 years |  |  |
Alliance Bernstein (AB) | New York City |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Area of property (in sq. ft.) |  |  |  | 190,000
Lease term |  |  |  | 20 years
Operating lease liabilities | $ |  |  |  | $ 448
Area of property, option to decrease, exercised (in sq. ft.) |  |  | 166,000 |
Operating lease, liability, option exercised | $ |  |  | $ 393 |
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining lease term |  | 1 year |  |
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Remaining lease term |  | 15 years |  |

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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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