0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Income link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - REVENUE RECOGNITION link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - PROPERTY AND EQUIPMENT, NET link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - CREDIT LOSSES link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - OTHER ASSETS, NET link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - CLEARING OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - FAIR VALUE MEASUREMENT link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - SEGMENT REPORTING link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - EMPLOYEE BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - REGULATORY CAPITAL link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - EQUITY link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - COMMITMENTS, CONTINGENCIES, AND GUARANTEES link:presentationLink link:calculationLink link:definitionLink 9952179 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952180 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - REVENUE RECOGNITION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - CREDIT LOSSES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - OTHER ASSETS, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - CLEARING OPERATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - FAIR VALUE MEASUREMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - SEGMENT REPORTING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - REGULATORY CAPITAL (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - REVENUE RECOGNITION - Revenue by Product Line and Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - REVENUE RECOGNITION - Rollforward of Deferred Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT - Schedule of Components of Assets and Liabilities Held for Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT - Pre-tax Expenses Related to Statements of Income by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - ACQUISITIONS AND STRATEGIC REALIGNMENT - Pre-tax Expenses Related to Statements of Income by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - INVESTMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - PROPERTY AND EQUIPMENT, NET - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - CREDIT LOSSES - Schedule of Changes in Allowance for Credit Loss (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - OTHER ASSETS, NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Goodwill by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Estimated Future Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Category (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES - Schedule of Accounts Payable and Accrued Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - DEBT - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - DEBT - Debt Repayments (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - DEBT - Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - CLEARING OPERATIONS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - CLEARING OPERATIONS - Clearing Participant (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - FAIR VALUE MEASUREMENT -Fair Value Hierarchy for Assets and Liabilities on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - FAIR VALUE MEASUREMENT - Fair Value Hierarchy of Financial Instruments Held (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - FAIR VALUE MEASUREMENT - Fair Values of Debt Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - SEGMENT REPORTING - Summarized Financial Information by Reportable Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - SEGMENT REPORTING - Long-lived assets by geographic areas (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - REGULATORY CAPITAL - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - REGULATORY CAPITAL - Subsidiaries with Regulatory Capital Requirements (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - STOCK-BASED COMPENSATION - Restricted and Performance Stock Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - EQUITY - Share Repurchase Program (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - EARNINGS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - LEASES - Supplemental Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - LEASES - Lease Costs and Other Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - LEASES - Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - LEASES - Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink