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Pay vs Performance Disclosure | 2 Months Ended | 10 Months Ended | 12 Months Ended
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Dec. 31, 2024 | Oct. 31, 2024 | Dec. 31, 2024 USD ($) $ / shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 USD ($) $ / shares
Pay vs Performance Disclosure |  |  |  |  |  |  |
Pay vs Performance Disclosure, Table |  |  | Pay Versus Performance As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, and Item 402(v) of Regulation S-K, the following table provides information about the relationship between executive “Compensation Actually Paid” ​(as defined by SEC rules) and certain financial performance measures. Our Compensation Committee believes in linking executive pay to Company performance and heavily weights variable compensation to reward achievements against pre-established, quantifiable financial performance objectives and individual strategic performance objectives. With the majority of executive pay delivered as variable incentive compensation and in the form of equity-based awards that track our stock price performance over time, the value ultimately realized by our executives is directly tied to shareholder value creation. Please see the Compensation Discussion and Analysis section of this Proxy Statement for more information regarding the decisions made by our Compensation Committee regarding CEO and NEO pay for performance alignment, and the compensation actually received by our NEOs, which differs from the amounts in the table set forth below. “Compensation Actually Paid”, calculated in accordance with SEC rules, requires several adjustments to the values of our vested and unvested equity awards based on year-end stock price, various accounting valuation assumptions and projected performance payout factors for outstanding performance-based equity awards. As a result, the amounts in the table below do not reflect the actual amount of compensation earned or paid to our NEOs, and the Compensation Committee did not consider these amounts when making its incentive compensation decisions.
​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ | Value of Initial Fixed $100 Investment Based On: | ​ | ​ | ​ |  | ​ | ​ | ​ |  | ​
​ | Year (a) | ​ | ​ | ​ | Summary Compensation Table Total for CEO (Cheung) (1) ($) (b) | ​ | ​ | ​ | “Compensation Actually Paid” to CEO (Cheung) (2) ($) (c) | ​ | ​ | ​ | Summary Compensation Table Total for Former CEO (Peterson) (1) ($) (d) | ​ | ​ | ​ | “Compensation Actually Paid” to Former CEO (Peterson) (2) ($) (e) | ​ | ​ | ​ | Average Summary Compensation Table Total for Non-CEO NEOs (1) ($) (f) | ​ | ​ | ​ | Average “Compensation Actually Paid” to Non-CEO NEOs (2) ($) (g) | ​ | ​ | ​ | Total Shareholder Return (3) ($) (h) | ​ | ​ | ​ | Peer Group Total Shareholder Return (3) ($) (i) | ​ | ​ | ​ | Net Income (in Millions) (4) ($) (j) | ​ | ​ | ​ | Non-GAAP ICP Adjusted Diluted Earnings Per Share (5) ($) (k) | ​
​ | 2024 | ​ | ​ | ​ | ​ | $ | 7,574,922 | ​ | ​ | ​ | ​ | ​ | $ | 15,204,871 | ​ | ​ | ​ | ​ | ​ | $ | 23,979,719 | ​ | ​ | ​ | ​ | ​ | $ | 54,929,776 | ​ | ​ | ​ | ​ | ​ | $ | 4,727,987 | ​ | ​ | ​ | ​ | ​ | $ | 5,873,856 | ​ | ​ | ​ | ​ | ​ | $ | 189 | ​ | ​ | ​ | ​ | ​ | $ | 176 | ​ | ​ | ​ | ​ | ​ | $ | 4,167 | ​ | ​ | ​ | ​ | ​ | $ | 16.23 | ​ | ​
​ | 2023 | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | 19,506,412 | ​ | ​ | ​ | ​ | ​ | $ | 31,021,988 | ​ | ​ | ​ | ​ | ​ | $ | 5,628,458 | ​ | ​ | ​ | ​ | ​ | $ | 9,139,695 | ​ | ​ | ​ | ​ | ​ | $ | 167 | ​ | ​ | ​ | ​ | ​ | $ | 155 | ​ | ​ | ​ | ​ | ​ | $ | 2,893 | ​ | ​ | ​ | ​ | ​ | $ | 14.06 | ​ | ​
​ | 2022 | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | 28,637,507 | ​ | ​ | ​ | ​ | ​ | $ | (9,225,719) | ​ | ​ | ​ | ​ | ​ | $ | 11,341,452 | ​ | ​ | ​ | ​ | ​ | $ | 3,426,362 | ​ | ​ | ​ | ​ | ​ | $ | 126 | ​ | ​ | ​ | ​ | ​ | $ | 120 | ​ | ​ | ​ | ​ | ​ | $ | 3,522 | ​ | ​ | ​ | ​ | ​ | $ | 12.36 | ​ | ​
​ | 2021 | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | 16,143,770 | ​ | ​ | ​ | ​ | ​ | $ | 45,607,587 | ​ | ​ | ​ | ​ | ​ | $ | 5,083,397 | ​ | ​ | ​ | ​ | ​ | $ | 11,305,553 | ​ | ​ | ​ | ​ | ​ | $ | 176 | ​ | ​ | ​ | ​ | ​ | $ | 158 | ​ | ​ | ​ | ​ | ​ | $ | 3,263 | ​ | ​ | ​ | ​ | ​ | $ | 13.43 | ​ | ​
​ | 2020 ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | 15,077,269 | ​ | ​ | ​ | ​ | ​ | $ | 31,868,869 | ​ | ​ | ​ | ​ | ​ | $ | 4,792,308 | ​ | ​ | ​ | ​ | ​ | $ | 7,574,701 | ​ | ​ | ​ | ​ | ​ | $ | 121 | ​ | ​ | ​ | ​ | ​ | $ | 121 | ​ | ​ | ​ | ​ | ​ | $ | 2,534 | ​ | ​ | ​ | ​ | ​ | $ | 11.78 | ​ | ​
(1) Douglas Peterson served as our President and CEO until Martina Cheung became our President and CEO on November 1, 2024. Compensation for our current and former CEOs reflects the amounts reported in the “Summary Compensation Table” for the respective years in which each served as our CEO. Average compensation for non-CEO NEOs is based on the compensation of the following NEOs: (i) in 2024, Christopher Craig, Ewout Steenbergen, Sally Moore, Steven Kemps, Saugata Saha and Adam Kansler, (ii) in 2023 and 2022, Ewout Steenbergen, Martina Cheung, Adam Kansler and Daniel Draper, (iii) in 2021, Ewout Steenbergen, John Berisford, Martina Cheung and Saugata Saha and (iv) in 2020, Ewout Steenbergen, John Berisford, Martina Cheung and Daniel Draper. ​ (2) “Compensation actually paid” for our CEO, former CEO, and average “compensation actually paid” for our non-CEO NEOs in each fiscal year reflects the respective Summary Compensation Table total amounts as set forth in columns (b), (d) and (f) of the table above, respectively, adjusted as set forth in the table below, as determined in accordance with SEC rules. For information regarding the decisions made by our Compensation Committee in regards to the CEO’s and other NEOs’ compensation for fiscal year 2024, see pages 46 through 47 and 49 through 54 of this Proxy Statement. ​
​ |  | ​ | ​ | ​ | CEO (M. Cheung) 2024 | ​ | ​ | ​ | Former CEO (D. Peterson) 2024 | ​ | ​ | ​ | Non-CEO NEOs 2024 | ​
​ | Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 7,574,922 | ​ | ​ | ​ | ​ | ​ | $ | 23,979,719 | ​ | ​ | ​ | ​ | ​ | $ | 4,727,987 | ​ | ​
​ | Less Stock Award Value Reported in Summary Compensation Table for the Covered Year | ​ | ​ | ​ | ​ | $ | (3,745,257) | ​ | ​ | ​ | ​ | ​ | $ | (16,779,010) | ​ | ​ | ​ | ​ | ​ | $ | (2,510,000) | ​ | ​
​ | Plus Year-End Fair Value of Outstanding Unvested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 6,384,534 | ​ | ​ | ​ | ​ | ​ | $ | 28,603,161 | ​ | ​ | ​ | ​ | ​ | $ | 3,859,316 | ​ | ​
​ | Change in Fair Value of Outstanding Unvested Awards from Prior Years | ​ | ​ | ​ | ​ | $ | 3,259,905 | ​ | ​ | ​ | ​ | ​ | $ | 11,250,522 | ​ | ​ | ​ | ​ | ​ | $ | 1,371,199 | ​ | ​
​ | Plus Fair Value as of the Vesting Date of Vested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 430,298 | ​ | ​ | ​ | ​ | ​ | $ | 1,927,874 | ​ | ​ | ​ | ​ | ​ | $ | 213,074 | ​ | ​
​ | Change in Fair Value of Awards from Prior Years that Vested in the Covered Year | ​ | ​ | ​ | ​ | $ | 1,266,074 | ​ | ​ | ​ | ​ | ​ | $ | 5,375,370 | ​ | ​ | ​ | ​ | ​ | $ | 613,350 | ​ | ​
​ | Less Fair Value of Awards Forfeited during the Covered Year | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | (2,434,974) | ​ | ​
​ | Plus Fair Value of Incremental Dividends or Earnings Paid on Stock Awards | ​ | ​ | ​ | ​ | $ | 34,395 | ​ | ​ | ​ | ​ | ​ | $ | 572,140 | ​ | ​ | ​ | ​ | ​ | $ | 33,904 | ​ | ​
​ | Less Aggregate Change in Actuarial Present Value of Accumulated Benefit Under Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | Plus Aggregate Service Cost and Prior Service Cost for Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | “Compensation Actually Paid” ​ | ​ | ​ | ​ | ​ | $ | 15,204,871 | ​ | ​ | ​ | ​ | ​ | $ | 54,929,776 | ​ | ​ | ​ | ​ | ​ | $ | 5,873,856 | ​ | ​
Fair values of equity awards set forth in the table above are computed in accordance with FASB ASC Topic 718 as of the end of the respective fiscal year, other than fair values of equity awards that vest in the covered year, which are valued as of the applicable vesting date. The aggregate change in actuarial present value of accumulated benefit under pension plans reflects the amount reported for the covered year in the Summary Compensation Table. Service cost is calculated as the actuarial present value of benefits under all pension plans attributable to services rendered during the covered fiscal year. Prior service cost is calculated as the entire cost of benefits granted (or credit for benefits reduced) in a plan amendment (or initiation) during the covered fiscal year that are attributable by the benefit formula to services rendered in periods prior to the applicable amendment. (3) TSR is cumulative for the measurement periods beginning on December 31, 2019 and ending on December 31 of each of 2024 (the “2020-2024 Measurement Period”), 2023 (the “2020-2023 Measurement Period”), 2022 (the “2020-2022 Measurement Period”), 2021 (the “2020-2021 Measurement Period”) and 2020 (the “2020 Measurement Period”), respectively, calculated in accordance with Item 201(e) of Regulation S-K. The amounts in the TSR columns above reflect updates from prior years’ disclosure for certain years in accordance with SEC rules. The peer group for purposes of this table is (i) with respect to the 2020-2021 Measurement Period and the 2020 Measurement Period, respectively, the same as our peer group as set forth in the Company’s Annual Reports on Form 10-K for the years ended December 31, 2020 and 2021, and (ii) with respect to the 2020-2022 Measurement Period, (x) for the portion of such measurement period ending on December 31, 2021, the same as our peer group as set forth in our Annual Reports on Form 10-K for the years ended December 31, 2020 and 2021, and (y) for the portion of such measurement period beginning on January 1, 2022 and ending on December 31, 2022, the same as our peer group as set forth in our Annual Report on Form 10-K for the year ended December 31, 2022. In 2022, due to the closing of our merger, IHS Markit was removed from the Company’s peer group. With respect to the 2020-2024 Measurement Period, the peer group for purposes of this table is the same as our peer group as set forth in our Annual Report on Form 10-K for the year ended December 31, 2024, which is also the same as the peer group used for the 2020-2023 Measurement Period and the portion of the 2020-2022 Measurement Period beginning on January 1, 2022 and ending on December 31, 2022. ​ (4) Reflects “Net Income” in the Company’s Consolidated Statements of Income included in the Company’s Annual Reports on Form 10-K for each of the years ended December 31, 2024, 2023, 2022, 2021 and 2020. ​ (5) For 2022, non-GAAP ICP Adjusted Diluted EPS is presented on a pro forma basis as if the merger with IHS Markit had closed on January 1, 2021. For 2020, 2021, 2023 and 2024, non-GAAP ICP Adjusted Diluted EPS is presented on a stand-alone basis. |  |  |  |
Company Selected Measure Name |  |  | Adjusted DilutedEarnings PerShare |  |  |  |
Named Executive Officers, Footnote |  |  | (1) Douglas Peterson served as our President and CEO until Martina Cheung became our President and CEO on November 1, 2024. Compensation for our current and former CEOs reflects the amounts reported in the “Summary Compensation Table” for the respective years in which each served as our CEO. Average compensation for non-CEO NEOs is based on the compensation of the following NEOs: (i) in 2024, Christopher Craig, Ewout Steenbergen, Sally Moore, Steven Kemps, Saugata Saha and Adam Kansler, (ii) in 2023 and 2022, Ewout Steenbergen, Martina Cheung, Adam Kansler and Daniel Draper, (iii) in 2021, Ewout Steenbergen, John Berisford, Martina Cheung and Saugata Saha and (iv) in 2020, Ewout Steenbergen, John Berisford, Martina Cheung and Daniel Draper. |  |  |  |
Peer Group Issuers, Footnote |  |  | (3) TSR is cumulative for the measurement periods beginning on December 31, 2019 and ending on December 31 of each of 2024 (the “2020-2024 Measurement Period”), 2023 (the “2020-2023 Measurement Period”), 2022 (the “2020-2022 Measurement Period”), 2021 (the “2020-2021 Measurement Period”) and 2020 (the “2020 Measurement Period”), respectively, calculated in accordance with Item 201(e) of Regulation S-K. The amounts in the TSR columns above reflect updates from prior years’ disclosure for certain years in accordance with SEC rules. The peer group for purposes of this table is (i) with respect to the 2020-2021 Measurement Period and the 2020 Measurement Period, respectively, the same as our peer group as set forth in the Company’s Annual Reports on Form 10-K for the years ended December 31, 2020 and 2021, and (ii) with respect to the 2020-2022 Measurement Period, (x) for the portion of such measurement period ending on December 31, 2021, the same as our peer group as set forth in our Annual Reports on Form 10-K for the years ended December 31, 2020 and 2021, and (y) for the portion of such measurement period beginning on January 1, 2022 and ending on December 31, 2022, the same as our peer group as set forth in our Annual Report on Form 10-K for the year ended December 31, 2022. In 2022, due to the closing of our merger, IHS Markit was removed from the Company’s peer group. With respect to the 2020-2024 Measurement Period, the peer group for purposes of this table is the same as our peer group as set forth in our Annual Report on Form 10-K for the year ended December 31, 2024, which is also the same as the peer group used for the 2020-2023 Measurement Period and the portion of the 2020-2022 Measurement Period beginning on January 1, 2022 and ending on December 31, 2022. |  |  |  |
Adjustment To PEO Compensation, Footnote |  |  | (2) “Compensation actually paid” for our CEO, former CEO, and average “compensation actually paid” for our non-CEO NEOs in each fiscal year reflects the respective Summary Compensation Table total amounts as set forth in columns (b), (d) and (f) of the table above, respectively, adjusted as set forth in the table below, as determined in accordance with SEC rules. For information regarding the decisions made by our Compensation Committee in regards to the CEO’s and other NEOs’ compensation for fiscal year 2024, see pages 46 through 47 and 49 through 54 of this Proxy Statement.
​ |  | ​ | ​ | ​ | CEO (M. Cheung) 2024 | ​ | ​ | ​ | Former CEO (D. Peterson) 2024 | ​ | ​ | ​ | Non-CEO NEOs 2024 | ​
​ | Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 7,574,922 | ​ | ​ | ​ | ​ | ​ | $ | 23,979,719 | ​ | ​ | ​ | ​ | ​ | $ | 4,727,987 | ​ | ​
​ | Less Stock Award Value Reported in Summary Compensation Table for the Covered Year | ​ | ​ | ​ | ​ | $ | (3,745,257) | ​ | ​ | ​ | ​ | ​ | $ | (16,779,010) | ​ | ​ | ​ | ​ | ​ | $ | (2,510,000) | ​ | ​
​ | Plus Year-End Fair Value of Outstanding Unvested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 6,384,534 | ​ | ​ | ​ | ​ | ​ | $ | 28,603,161 | ​ | ​ | ​ | ​ | ​ | $ | 3,859,316 | ​ | ​
​ | Change in Fair Value of Outstanding Unvested Awards from Prior Years | ​ | ​ | ​ | ​ | $ | 3,259,905 | ​ | ​ | ​ | ​ | ​ | $ | 11,250,522 | ​ | ​ | ​ | ​ | ​ | $ | 1,371,199 | ​ | ​
​ | Plus Fair Value as of the Vesting Date of Vested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 430,298 | ​ | ​ | ​ | ​ | ​ | $ | 1,927,874 | ​ | ​ | ​ | ​ | ​ | $ | 213,074 | ​ | ​
​ | Change in Fair Value of Awards from Prior Years that Vested in the Covered Year | ​ | ​ | ​ | ​ | $ | 1,266,074 | ​ | ​ | ​ | ​ | ​ | $ | 5,375,370 | ​ | ​ | ​ | ​ | ​ | $ | 613,350 | ​ | ​
​ | Less Fair Value of Awards Forfeited during the Covered Year | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | (2,434,974) | ​ | ​
​ | Plus Fair Value of Incremental Dividends or Earnings Paid on Stock Awards | ​ | ​ | ​ | ​ | $ | 34,395 | ​ | ​ | ​ | ​ | ​ | $ | 572,140 | ​ | ​ | ​ | ​ | ​ | $ | 33,904 | ​ | ​
​ | Less Aggregate Change in Actuarial Present Value of Accumulated Benefit Under Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | Plus Aggregate Service Cost and Prior Service Cost for Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | “Compensation Actually Paid” ​ | ​ | ​ | ​ | ​ | $ | 15,204,871 | ​ | ​ | ​ | ​ | ​ | $ | 54,929,776 | ​ | ​ | ​ | ​ | ​ | $ | 5,873,856 | ​ | ​
Fair values of equity awards set forth in the table above are computed in accordance with FASB ASC Topic 718 as of the end of the respective fiscal year, other than fair values of equity awards that vest in the covered year, which are valued as of the applicable vesting date. The aggregate change in actuarial present value of accumulated benefit under pension plans reflects the amount reported for the covered year in the Summary Compensation Table. Service cost is calculated as the actuarial present value of benefits under all pension plans attributable to services rendered during the covered fiscal year. Prior service cost is calculated as the entire cost of benefits granted (or credit for benefits reduced) in a plan amendment (or initiation) during the covered fiscal year that are attributable by the benefit formula to services rendered in periods prior to the applicable amendment. |  |  |  |
Non-PEO NEO Average Total Compensation Amount |  |  | $ 4,727,987 | $ 5,628,458 | $ 11,341,452 | $ 5,083,397 | $ 4,792,308
Non-PEO NEO Average Compensation Actually Paid Amount |  |  | $ 5,873,856 | 9,139,695 | 3,426,362 | 11,305,553 | 7,574,701
Adjustment to Non-PEO NEO Compensation Footnote |  |  | (2) “Compensation actually paid” for our CEO, former CEO, and average “compensation actually paid” for our non-CEO NEOs in each fiscal year reflects the respective Summary Compensation Table total amounts as set forth in columns (b), (d) and (f) of the table above, respectively, adjusted as set forth in the table below, as determined in accordance with SEC rules. For information regarding the decisions made by our Compensation Committee in regards to the CEO’s and other NEOs’ compensation for fiscal year 2024, see pages 46 through 47 and 49 through 54 of this Proxy Statement.
​ |  | ​ | ​ | ​ | CEO (M. Cheung) 2024 | ​ | ​ | ​ | Former CEO (D. Peterson) 2024 | ​ | ​ | ​ | Non-CEO NEOs 2024 | ​
​ | Summary Compensation Table Total | ​ | ​ | ​ | ​ | $ | 7,574,922 | ​ | ​ | ​ | ​ | ​ | $ | 23,979,719 | ​ | ​ | ​ | ​ | ​ | $ | 4,727,987 | ​ | ​
​ | Less Stock Award Value Reported in Summary Compensation Table for the Covered Year | ​ | ​ | ​ | ​ | $ | (3,745,257) | ​ | ​ | ​ | ​ | ​ | $ | (16,779,010) | ​ | ​ | ​ | ​ | ​ | $ | (2,510,000) | ​ | ​
​ | Plus Year-End Fair Value of Outstanding Unvested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 6,384,534 | ​ | ​ | ​ | ​ | ​ | $ | 28,603,161 | ​ | ​ | ​ | ​ | ​ | $ | 3,859,316 | ​ | ​
​ | Change in Fair Value of Outstanding Unvested Awards from Prior Years | ​ | ​ | ​ | ​ | $ | 3,259,905 | ​ | ​ | ​ | ​ | ​ | $ | 11,250,522 | ​ | ​ | ​ | ​ | ​ | $ | 1,371,199 | ​ | ​
​ | Plus Fair Value as of the Vesting Date of Vested Awards Granted in the Covered Year | ​ | ​ | ​ | ​ | $ | 430,298 | ​ | ​ | ​ | ​ | ​ | $ | 1,927,874 | ​ | ​ | ​ | ​ | ​ | $ | 213,074 | ​ | ​
​ | Change in Fair Value of Awards from Prior Years that Vested in the Covered Year | ​ | ​ | ​ | ​ | $ | 1,266,074 | ​ | ​ | ​ | ​ | ​ | $ | 5,375,370 | ​ | ​ | ​ | ​ | ​ | $ | 613,350 | ​ | ​
​ | Less Fair Value of Awards Forfeited during the Covered Year | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | (2,434,974) | ​ | ​
​ | Plus Fair Value of Incremental Dividends or Earnings Paid on Stock Awards | ​ | ​ | ​ | ​ | $ | 34,395 | ​ | ​ | ​ | ​ | ​ | $ | 572,140 | ​ | ​ | ​ | ​ | ​ | $ | 33,904 | ​ | ​
​ | Less Aggregate Change in Actuarial Present Value of Accumulated Benefit Under Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | Plus Aggregate Service Cost and Prior Service Cost for Pension Plans | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | $ | — | ​ | ​
​ | “Compensation Actually Paid” ​ | ​ | ​ | ​ | ​ | $ | 15,204,871 | ​ | ​ | ​ | ​ | ​ | $ | 54,929,776 | ​ | ​ | ​ | ​ | ​ | $ | 5,873,856 | ​ | ​
Fair values of equity awards set forth in the table above are computed in accordance with FASB ASC Topic 718 as of the end of the respective fiscal year, other than fair values of equity awards that vest in the covered year, which are valued as of the applicable vesting date. The aggregate change in actuarial present value of accumulated benefit under pension plans reflects the amount reported for the covered year in the Summary Compensation Table. Service cost is calculated as the actuarial present value of benefits under all pension plans attributable to services rendered during the covered fiscal year. Prior service cost is calculated as the entire cost of benefits granted (or credit for benefits reduced) in a plan amendment (or initiation) during the covered fiscal year that are attributable by the benefit formula to services rendered in periods prior to the applicable amendment. |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  | (1) “Compensation Actually Paid” and TSR |  |  |  |
Compensation Actually Paid vs. Net Income |  |  | (2) “Compensation Actually Paid” and Net Income |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  | (3) “Compensation Actually Paid” and Non-GAAP ICP Adjusted Diluted EPS |  |  |  |
Total Shareholder Return Vs Peer Group |  |  | (1) “Compensation Actually Paid” and TSR |  |  |  |
Tabular List, Table |  |  | Our Most Important Performance Measures The following table sets forth an unranked list of the performance measures which we view as the “most important” measures for linking our NEOs’ compensation to short- and long-term Company performance. For more information on how our Compensation Committee uses these metrics to assess the performance of our NEOs and determines executive compensation within our pay-for-performance compensation framework, please see the Compensation Discussion and Analysis section of this Proxy Statement beginning on page 31.
​ | ​ | Performance Measure | ​ | ​ | ​ | Considerations | ​ | ​
​ | ​ | Non-GAAP ICP Adjusted Diluted EPS | ​ | ​ | ​ | Used as the sole metric for our 3-year long-term Performance Share Unit (PSU) Awards, which account for the largest component of executive pay, this metric drives long-term value creation for our shareholders, as it considers capital allocation decisions as well as the importance of continual discipline in operating performance | ​ | ​
​ | ​ | Non-GAAP ICP Adjusted Revenue Growth | ​ | ​ | ​ | Used to determine 35% of annual short-term incentive pool funding for our NEOs, this metric strengthens the importance of growth and scale to our Company | ​ | ​
​ | ​ | Non-GAAP ICP Adjusted EBITA Margin | ​ | ​ | ​ | Used to determine 35% of annual short-term incentive pool funding for our NEOs, this metric draws focus on margin expansion driven by revenue growth, cost discipline and productivity | ​ | ​
Total Shareholder Return Amount |  |  | $ 189 | 167 | 126 | 176 | 121
Peer Group Total Shareholder Return Amount |  |  | 176 | 155 | 120 | 158 | 121
Net Income (Loss) |  |  | $ 4,167,000,000 | $ 2,893,000,000 | $ 3,522,000,000 | $ 3,263,000,000 | $ 2,534,000,000
Company Selected Measure Amount | $ / shares |  |  | 16.23 | 14.06 | 12.36 | 13.43 | 11.78
PEO Name | Martina Cheung | Douglas Peterson |  |  |  |  |
Measure:: 1 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | ICP Adjusted Diluted EPS ​​​ Used as the sole metric for our 3-year long-term Performance Share Unit (PSU) |  |  |  |
Non-GAAP Measure Description |  |  | (5) For 2022, non-GAAP ICP Adjusted Diluted EPS is presented on a pro forma basis as if the merger with IHS Markit had closed on January 1, 2021. For 2020, 2021, 2023 and 2024, non-GAAP ICP Adjusted Diluted EPS is presented on a stand-alone basis. |  |  |  |
Measure:: 2 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | ICP Adjusted Revenue Growth |  |  |  |
Measure:: 3 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | ICP Adjusted EBITA Margin |  |  |  |
Martina Cheung [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
PEO Total Compensation Amount |  |  | $ 7,574,922 |  |  |  |
PEO Actually Paid Compensation Amount |  |  | 15,204,871 |  |  |  |
Douglas L. Peterson [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
PEO Total Compensation Amount |  |  | 23,979,719 | 19,506,412 | 28,637,507 | 16,143,770 | 15,077,269
PEO Actually Paid Compensation Amount |  |  | 54,929,776 | $ 31,021,988 | $ (9,225,719) | $ 45,607,587 | $ 31,868,869
PEO | Martina Cheung [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
PEO | Martina Cheung [Member] | Aggregate Pension Adjustments Service Cost |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
PEO | Martina Cheung [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (3,745,257) |  |  |  |
PEO | Martina Cheung [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 6,384,534 |  |  |  |
PEO | Martina Cheung [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 3,259,905 |  |  |  |
PEO | Martina Cheung [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 430,298 |  |  |  |
PEO | Martina Cheung [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 1,266,074 |  |  |  |
PEO | Martina Cheung [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 34,395 |  |  |  |
PEO | Martina Cheung [Member] | Fair Value of Awards Forfeited during the Covered Year [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
PEO | Douglas L. Peterson [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
PEO | Douglas L. Peterson [Member] | Aggregate Pension Adjustments Service Cost |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
PEO | Douglas L. Peterson [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (16,779,010) |  |  |  |
PEO | Douglas L. Peterson [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 28,603,161 |  |  |  |
PEO | Douglas L. Peterson [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 11,250,522 |  |  |  |
PEO | Douglas L. Peterson [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 1,927,874 |  |  |  |
PEO | Douglas L. Peterson [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 5,375,370 |  |  |  |
PEO | Douglas L. Peterson [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 572,140 |  |  |  |
PEO | Douglas L. Peterson [Member] | Fair Value of Awards Forfeited during the Covered Year [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
Non-PEO NEO | Aggregate Pension Adjustments Service Cost |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  |  |  |  |  |
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (2,510,000) |  |  |  |
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 3,859,316 |  |  |  |
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 1,371,199 |  |  |  |
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 213,074 |  |  |  |
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 613,350 |  |  |  |
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 33,904 |  |  |  |
Non-PEO NEO | Fair Value of Awards Forfeited during the Covered Year [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | $ (2,434,974) |  |  |  |

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