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Revenues - Schedule of Changes in the Deferred Revenue Balances (Detail) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Change in Contract with Customer, Liability [Abstract] |  |  |
Beginning Balance | $ 1,511 | $ 1,381 |
Revenue recognized that was included in the deferred revenue balance at the beginning of the period | (591) | (531) |
Increases due to amounts billable excluding amounts recognized as revenue during the period | 854 | 839 |
Increases due to acquisitions during the period | 15 | 0 |
Effect of exchange rate changes | 33 | (16) |
Total changes in deferred revenue | 311 | 292 |
Ending Balance | 1,822 | 1,673 |
Deferred revenue | 1,765 | 1,612 | $ 1,454
Non-current portion of deferred revenue | 57 | 61 | $ 57
MA |  |  |
Change in Contract with Customer, Liability [Abstract] |  |  |
Beginning Balance | 1,243 | 1,111 |
Revenue recognized that was included in the deferred revenue balance at the beginning of the period | (492) | (437) |
Increases due to amounts billable excluding amounts recognized as revenue during the period | 666 | 652 |
Increases due to acquisitions during the period | 15 | 0 |
Effect of exchange rate changes | 30 | (14) |
Total changes in deferred revenue | 219 | 201 |
Ending Balance | 1,462 | 1,312 |
Deferred revenue | 1,461 | 1,310 |
Non-current portion of deferred revenue | 1 | 2 |
MIS |  |  |
Change in Contract with Customer, Liability [Abstract] |  |  |
Beginning Balance | 268 | 270 |
Revenue recognized that was included in the deferred revenue balance at the beginning of the period | (99) | (94) |
Increases due to amounts billable excluding amounts recognized as revenue during the period | 188 | 187 |
Increases due to acquisitions during the period | 0 |  |
Effect of exchange rate changes | 3 | (2) |
Total changes in deferred revenue | 92 | 91 |
Ending Balance | 360 | 361 |
Deferred revenue | 304 | 302 |
Non-current portion of deferred revenue | $ 56 | $ 59 |

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