SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
Dec. 31, 2025
EBP 001
EBP, Accounting Policy [Line Items]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Accounting The financial statements of the Plan are prepared on the accrual basis of accounting. Use of Estimates The preparation of financial statements in conformity with United States Generally Accepted Accounting Principles (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Investment Valuation and Income Recognition The Plan’s investments are stated at fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. See Note 3 for discussion of fair value measurement. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation (depreciation) includes the Plan’s gains and losses on investments bought and sold, as well as held during the year. Payment of Benefits Benefits are recorded when paid. Fair Value Measurements Accounting Standards Codification (“ASC”) 820, Fair Value Measurements and Disclosures establishes a framework for measuring fair value. This framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (“Level 1”), the next priority to quoted values based on observable inputs (“Level 2”), and the lowest priority to values based on unobservable inputs (“Level 3”). The three levels of the fair value hierarchy under ASC 820 are briefly described below: Level 1: Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access at the measurement date. For example, stocks listed on a recognized exchange or listed mutual funds. MARRIOTT INTERNATIONAL, INC. PUERTO RICO RETIREMENT PLAN NOTES TO FINANCIAL STATEMENTS December 31, 2025 and 2024 NOTE 2: SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued) Level 2: Inputs to the valuation methodology include: •Quoted prices for similar assets or liabilities in active markets; •Quoted prices for identical or similar assets or liabilities not active markets; •Inputs other than quoted prices that are observable for the asset or liability; •Inputs that are derived principally from or corroborated by observable market data by correlation or other means. If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability. Level 3: Level 3 inputs include unobservable inputs that reflect our assumptions about what factors market participants would use in pricing the asset or liability. We develop these inputs based on the best information available, including our own data. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Following is a description of the valuation methodologies used for assets measured at fair value as of December 31, 2025 and 2024. Mutual funds: Valued at the daily closing price as reported by the fund. Mutual funds held by the Plan are open-ended mutual funds that are registered with the Securities Exchange Commission. These funds are required to publish their daily net asset value (“NAV”) and to transact at that price. The mutual funds held by the Plan are deemed to be actively traded. Common collective trust: Valued at the NAV of units of a collective trust. The NAV, as provided by the custodian, is used as a practical expedient to estimate fair value. The NAV is based on the fair value of the underlying investments held by the fund less its liabilities. MARRIOTT INTERNATIONAL, INC. PUERTO RICO RETIREMENT PLAN NOTES TO FINANCIAL STATEMENTS December 31, 2025 and 2024 NOTE 2: SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued) Participant transactions (purchases and sales) may occur daily. If the Plan initiates a full redemption of the collective trust, the issuer reserves the right to require 12 months notification in order to ensure that securities liquidations will be carried out in an orderly business manner. The Stock Fund is tracked on a unitized basis. The Stock Fund consists of Marriott International, Inc. common stock and funds held in the Fidelity Treasury Portfolio as of December 31, 2025 and 2024 sufficient to meet the Stock Fund’s daily cash needs, as well as interest and dividends receivable. Unitizing the Stock Fund allows for daily trades. The value of a unit reflects the combined market value of Marriott International, Inc. common stock, valued at its quoted market price, and the cash investments and receivables held by the Stock Fund. At December 31, 2025, 167,825 units were outstanding with a value of $24.17 per unit. At December 31, 2024, 172,855 units were outstanding with a value of $21.73 per unit.. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. There have been no changes in valuation methodologies from December 31, 2024 to December 31, 2025. Notes Receivable from Participants Notes receivable from participants are recorded at principal less repayments plus accrued interest. Interest income is recorded on the accrual basis. Related fees are recorded as administrative expenses and are expensed when they are incurred. If a participant ceases to make loan repayments and the plan administrator deems the participant loan to be in default, the participant loan balance is reduced, and a benefit payment is recorded. Contributions Contributions from Plan participants and the matching contributions from the Company are recorded in the year in which the employee contributions are withheld from compensation.

The preparation of financial statements in conformity with United States Generally Accepted Accounting Principles (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

The Plan’s investments are stated at fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. See Note 3 for discussion of fair value measurement.

Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation (depreciation) includes the Plan’s gains and losses on investments bought and sold, as well as held during the year.

Accounting Standards Codification (“ASC”) 820, Fair Value Measurements and Disclosures establishes a framework for measuring fair value. This framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (“Level 1”), the next priority to quoted values based on observable inputs (“Level 2”), and the lowest priority to values based on unobservable inputs (“Level 3”). The three levels of the fair value hierarchy under ASC 820 are briefly described below:

Level 1: Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access at the measurement date. For example, stocks listed on a recognized exchange or listed mutual funds.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

what factors market participants would use in pricing the asset or liability. We develop these inputs based on the best information available, including our own data.

Mutual funds: Valued at the daily closing price as reported by the fund. Mutual funds held by the Plan are open-ended mutual funds that are registered with the Securities Exchange Commission. These funds are required to publish their daily net asset value (“NAV”) and to transact at that price. The mutual funds held by the Plan are deemed to be actively traded.

Common collective trust: Valued at the NAV of units of a collective trust. The NAV, as provided by the custodian, is used as a practical expedient to estimate fair value. The NAV is based on the fair value of the underlying investments held by the fund less its liabilities.

Participant transactions (purchases and sales) may occur daily. If the Plan initiates a full redemption of the collective trust, the issuer reserves the right to require 12 months notification in order to ensure that securities liquidations will be carried out in an orderly business manner.

The Stock Fund is tracked on a unitized basis. The Stock Fund consists of Marriott International, Inc. common stock and funds held in the Fidelity Treasury Portfolio as of December 31, 2025 and 2024 sufficient to meet the Stock Fund’s daily cash needs, as well as interest and dividends receivable. Unitizing the Stock Fund allows for daily trades. The value of a unit reflects the combined market value of Marriott International, Inc. common stock, valued at its quoted market price, and the cash investments and receivables held by the Stock Fund. At December 31, 2025, 167,825 units were outstanding with a value of $24.17 per unit. At December 31, 2024, 172,855 units were outstanding with a value of $21.73 per unit..

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. There have been no changes in valuation methodologies from December 31, 2024 to December 31, 2025.

Notes receivable from participants are recorded at principal less repayments plus accrued interest. Interest income is recorded on the accrual basis. Related fees are recorded as administrative expenses and are expensed when they are incurred. If a participant ceases to make loan repayments and the plan administrator deems the participant loan to be in default, the participant loan balance is reduced, and a benefit payment is recorded.

Contributions from Plan participants and the matching contributions from the Company are recorded in the year in which the employee contributions are withheld from compensation.