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Acquisitions and Divestitures - Narrative (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | ---
Jan. 14, 2023 | Feb. 28, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain (loss) on sale |  |  | $ 50,000,000 | $ 1,344,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | LCD |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain (loss) on sale |  |  | $ 50,000,000 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | LCD | Market Intelligence |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent consideration, Payment due following closing, period |  |  | 6 months |
Pre-tax gain (loss) on sale |  |  | $ 46,000,000 |
Gain (loss) on disposition after tax |  |  | 34,000,000 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | LCD | Indices |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain (loss) on sale |  |  | 4,000,000 |
Gain (loss) on disposition after tax |  |  | $ 3,000,000 |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CUSIP Global Services |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain (loss) on sale |  |  |  | 1,344,000,000
Gain (loss) on disposition after tax |  |  |  | 999,000,000
Divestiture consideration |  |  |  | $ 1,925,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | OPIS |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain (loss) on sale |  | $ 0 |  |
Divestiture consideration |  | 1,150,000,000 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Engineering Solutions Segment |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Divestiture consideration | $ 975,000,000 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Engineering Solutions Business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from divestiture of business | $ 750,000,000 |  |  |
IHS Markit |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Fair value of S&P Global common stock and replacement equity awards |  | $ 43,500,000,000 |  |

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