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Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | $ 19,424 | $ 19,285 |
Acquisitions | 268 | 104 |
Reclassifications | (15) |  |
Other | (39) | 35 |
Ending balance | 19,638 | 19,424 | $ 19,285
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 2,872 | 1,825 |
Current year amortization | 1,077 | 1,042 | 905
Reclassifications | (13) | 0 |
Other | (8) | 5 |
Accumulated amortization, ending balance | 3,928 | 2,872 | 1,825
Net definite-lived intangibles | 15,710 | 16,552 |
Databases and software |  |  |
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | 3,942 | 3,941 |
Acquisitions | 0 | 0 |
Reclassifications | (15) |  |
Other | 0 | 1 |
Ending balance | 3,927 | 3,942 | 3,941
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 1,116 | 765 |
Current year amortization | 350 | 351 |
Reclassifications | (13) | 0 |
Other | 0 | 0 |
Accumulated amortization, ending balance | 1,453 | 1,116 | 765
Net definite-lived intangibles | 2,474 | 2,826 |
Content |  |  |
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | 139 | 139 |
Acquisitions | 0 | 0 |
Reclassifications | 0 |  |
Other | 0 | 0 |
Ending balance | 139 | 139 | 139
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 139 | 139 |
Current year amortization | 0 | 0 |
Reclassifications | 0 | 0 |
Other | 0 | 0 |
Accumulated amortization, ending balance | 139 | 139 | 139
Net definite-lived intangibles | 0 | 0 |
Customer relationships |  |  |
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | 13,490 | 13,467 |
Acquisitions | 0 | 0 |
Reclassifications | 0 |  |
Other | (25) | 23 |
Ending balance | 13,465 | 13,490 | 13,467
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 1,198 | 656 |
Current year amortization | 542 | 545 |
Reclassifications | 0 | (2) |
Other | (3) | (1) |
Accumulated amortization, ending balance | 1,737 | 1,198 | 656
Net definite-lived intangibles | 11,728 | 12,292 |
Tradenames |  |  |
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | 1,528 | 1,524 |
Acquisitions | 0 | 0 |
Reclassifications | 0 |  |
Other | (7) | 4 |
Ending balance | 1,521 | 1,528 | 1,524
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 256 | 142 |
Current year amortization | 111 | 111 |
Reclassifications | 0 | 2 |
Other | (1) | 1 |
Accumulated amortization, ending balance | 366 | 256 | 142
Net definite-lived intangibles | 1,155 | 1,272 |
Other intangibles |  |  |
Finite-lived Intangible Assets [Roll Forward] |  |  |
Beginning balance | 325 | 214 |
Acquisitions | 268 | 104 |
Reclassifications | 0 |  |
Other | (7) | 7 |
Ending balance | 586 | 325 | 214
Finite-lived Intangible Assets, Accumulated Amortization [Roll Forward] |  |  |
Accumulated amortization, beginning balance | 163 | 123 |
Current year amortization | 74 | 35 |
Reclassifications | 0 | 0 |
Other | (4) | 5 |
Accumulated amortization, ending balance | 233 | 163 | $ 123
Net definite-lived intangibles | $ 353 | $ 162 |

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