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Debt - Narrative (Details) |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
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Mar. 02, 2022 USD ($) note | Apr. 26, 2021 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 04, 2022 USD ($) | Feb. 28, 2022 USD ($) | Feb. 25, 2022 USD ($) | Feb. 24, 2022 USD ($) | Sep. 30, 2020 USD ($) | Aug. 13, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Annual long term debt maturity year 2023 |  |  |  |  | $ 38,000,000 |  |  |  |  |  |  |  |
Annual long term debt maturity year 2024 |  |  |  |  | 48,000,000 |  |  |  |  |  |  |  |
Annual long term debt maturity year 2025 |  |  |  |  | 4,000,000 |  |  |  |  |  |  |  |
Annual long term debt maturity year 2026 |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |
Annual long term debt maturity year 2027 |  |  |  |  | 1,700,000,000 |  |  |  |  |  |  |  |
Annual long term debt maturity thereafter |  |  |  |  | 8,900,000,000 |  |  |  |  |  |  |  |
Fair value of our long-term debt borrowings |  |  |  |  | 9,300,000,000 | $ 4,400,000,000 |  |  |  |  |  |  |
Debt face amount |  |  |  |  | 134,000,000 |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  | 8,000,000 | $ 0 | $ 279,000,000 |  |  |  |  |  |
Repayments of debt |  |  |  |  | 142,000,000 |  |  |  |  |  |  |  |
Commercial paper, at carrying value |  |  |  |  | $ 188,000,000 |  |  |  |  |  |  |  |
Ratio of indebtedness to cash flow |  |  |  |  | 4 |  |  |  |  |  |  |  |
IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  | $ 4,191,000,000 |  |  |  |
Debt instrument, redemption price, percentage of principal amount redeemed | 96.00% |  |  |  |  |  |  |  |  |  |  |  |
Debt conversion, original debt, amount | $ 4,500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing capacity |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fair value disclosure |  |  |  |  |  |  |  |  | 292,000,000 |  |  |  |
Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, principal amount | 4,600,000,000 |  |  |  |  |  |  |  | 4,600,000,000 |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  | $ 4,900,000,000 |  |  |  |
Long-term debt, gross | $ 175,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, series of senior notes, number | note | 7 |  |  |  |  |  |  |  |  |  |  |  |
5.0% Senior Notes, due 2022 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 748,000,000 |  |  |  |
4.125% Senior Notes, due 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.125% |  |  |  |  |  |  |  |
4.125% Senior Notes, due 2023 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.125% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 500,000,000 |  |  |  |
3.625% Senior Notes, due 2024 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.625% |  |  |  |  |  |  |  |
3.625% Senior Notes, due 2024 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 3.625% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |
4.75% Senior Notes, due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.75% |  |  |  |  |  |  |  |
4.75% Senior Notes, due 2025 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.75% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 800,000,000 |  |  |  |
4.0% Senior Notes, due 2026 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.00% |  |  |  |  |  |  |  |
4.0% Senior Notes, due 2026 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.00% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 500,000,000 |  |  |  |
4.75% Senior Notes, due 2028 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.75% |  |  |  |  |  |  |  |
4.75% Senior Notes, due 2028 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.75% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 750,000,000 |  |  |  |
4.25% Senior Notes, due 2029 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.25% |  |  |  |  |  |  |  |
4.25% Senior Notes, due 2029 | Senior Notes | IHS Markit Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.25% |  |  |  |
Long-term debt, gross |  |  |  |  |  |  |  |  | $ 950,000,000 |  |  |  |
2.45% Senior Notes, due 2027 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 2.45% |  |  | 2.45% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 1,250,000,000 |  |  |  |  |
2.70% Sustainability-Linked Senior Notes, due 2029 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 2.70% |  |  | 2.70% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 1,250,000,000 |  |  |  |  |
2.90% Senior Notes, due 2032 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 2.90% |  |  | 2.90% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 1,500,000,000 |  |  |  |  |
3.7% Senior Notes, due 2052 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.70% |  |  | 3.70% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |  |
3.9% Senior Notes, due 2062 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.90% |  |  | 3.90% |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 500,000,000 |  |  |  |  |
Senior Notes 4.125% Due 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  | 4.125% |  |  |  |  |
Senior Notes 3.625% Due 2024 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  | 3.625% |  |  |  |  |
Senior Notes 4.0% Due 2026 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  | 4.00% |  |  |  |  |
Senior Notes 5.0% Due 2022 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 5.00% |  |  |  | 5.00% |  |  |  |  |
Extinguishment of debt, amount |  |  |  | $ 52,000,000 |  |  |  |  |  |  |  |  |
Senior Notes 4.750% Due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 4.75% |  |  |  | 4.75% |  |  |  |  |
Extinguishment of debt, amount |  |  |  | $ 247,000,000 |  |  |  |  |  |  |  |  |
4.0% Senior Notes, due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 4.00% | 4.00% |  |  | 4.00% |  |  |  |  |
Extinguishment of debt, amount |  |  |  | $ 287,000,000 |  |  |  |  |  |  |  |  |
1.25% Senior Notes, due 2030 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 1.25% |  |  |  |  |  |  |  | 1.25%
Debt face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000,000
2.3% Senior Notes, due 2060 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 2.30% |  |  |  |  |  |  |  | 2.30%
Debt face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 700,000,000
Senior Notes 4.4% Due 2026 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 4.40% |
Debt face amount |  |  |  |  |  |  |  |  |  |  |  | $ 900,000,000 |
6.55% Senior Notes, due 2037 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 6.55% |  |  |  |  |  |  | 6.55% |
4.5% Senior Notes, due 2048 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.50% |  |  |  |  |  |  | 4.50% |
Five-year Revolving Credit Facility | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 1,500,000,000 |  |  |  |  |  |  |  |  |  |  |
Credit facility term |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  |  |  |  |  |  |  | $ 2,000,000,000 | $ 1,500,000,000 |  |
Commitment fee ratio |  |  |  |  | 0.08% |  |  |  |  |  |  |  |
Five-year Revolving Credit Facility | Revolving Credit Facility Due 2022 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 2,000,000,000 |  |  |  |  |  |  |  |  |  |
Credit facility term |  |  | 5 years |  |  |  |  |  |  |  |  |  |

X
- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt, Principal Amount + References No definition available. + Details
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- Definition Unsecured short-term debt instrument issued by corporations which are highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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