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FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Recorded at Fair Value (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets |  |
Available-for-sale debt securities | $ 2,426 | $ 2,293
Fair value, recurring |  |
Assets |  |
Total | 8,639 | 7,600
Liabilities: |  |
Total | 570 | 538
Fair value, recurring | MYR |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 228 | 275
Fair value, recurring | Galapagos |  |
Liabilities: |  |
Equity investment, current | 686 |
Equity investment, noncurrent |  | 736
Fair value, recurring | Arcellx, Inc |  |
Liabilities: |  |
Equity investment, noncurrent | 373 |
Level 1 | Fair value, recurring |  |
Assets |  |
Total | 6,633 | 5,658
Liabilities: |  |
Total | 283 | 220
Level 1 | Fair value, recurring | MYR |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 0 | 0
Level 1 | Fair value, recurring | Galapagos |  |
Liabilities: |  |
Equity investment, current | 686 |
Level 2 | Fair value, recurring |  |
Assets |  |
Total | 2,007 | 1,943
Liabilities: |  |
Total | 59 | 42
Level 2 | Fair value, recurring | MYR |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 0 | 0
Level 3 | Fair value, recurring |  |
Assets |  |
Total | 0 | 0
Liabilities: |  |
Total | 228 | 275
Level 3 | Fair value, recurring | MYR |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 228 | 275
U.S. treasury securities | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 426 | 410
U.S. treasury securities | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 426 | 410
U.S. treasury securities | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
U.S. treasury securities | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
U.S. government agencies securities | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 127 | 35
U.S. government agencies securities | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
U.S. government agencies securities | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 127 | 35
U.S. government agencies securities | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Non-U.S. government securities | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 10 | 34
Non-U.S. government securities | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Non-U.S. government securities | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 10 | 34
Non-U.S. government securities | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Certificates of deposit | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 45 | 54
Certificates of deposit | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Certificates of deposit | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 45 | 54
Certificates of deposit | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Corporate debt securities | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 1,451 | 1,427
Corporate debt securities | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Corporate debt securities | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 1,451 | 1,427
Corporate debt securities | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Residential mortgage and asset-backed securities | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 367 | 333
Residential mortgage and asset-backed securities | Level 1 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Residential mortgage and asset-backed securities | Level 2 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 367 | 333
Residential mortgage and asset-backed securities | Level 3 | Fair value, recurring |  |
Assets |  |
Available-for-sale debt securities | 0 | 0
Money market funds | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 4,465 | 3,831
Money market funds | Level 1 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 4,465 | 3,831
Money market funds | Level 2 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Money market funds | Level 3 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Publicly traded equity securities | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 1,458 | 1,197
Publicly traded equity securities | Level 1 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 1,458 | 1,197
Publicly traded equity securities | Level 2 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Publicly traded equity securities | Level 3 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Deferred compensation plan | Fair value, recurring |  |
Assets |  |
Marketable equity securities |  | 220
Liabilities: |  |
Deferred compensation plan | 283 | 220
Deferred compensation plan | Level 1 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 284 | 220
Liabilities: |  |
Deferred compensation plan | 283 | 220
Deferred compensation plan | Level 2 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Liabilities: |  |
Deferred compensation plan | 0 | 0
Deferred compensation plan | Level 3 | Fair value, recurring |  |
Assets |  |
Marketable equity securities | 0 | 0
Liabilities: |  |
Deferred compensation plan | 0 | 0
Foreign currency derivative contracts | Fair value, recurring |  |
Assets |  |
Foreign currency derivative contracts | 7 | 60
Liabilities: |  |
Foreign currency derivative contracts | 59 | 42
Foreign currency derivative contracts | Level 1 | Fair value, recurring |  |
Assets |  |
Foreign currency derivative contracts | 0 | 0
Liabilities: |  |
Foreign currency derivative contracts | 0 | 0
Foreign currency derivative contracts | Level 2 | Fair value, recurring |  |
Assets |  |
Foreign currency derivative contracts | 7 | 60
Liabilities: |  |
Foreign currency derivative contracts | 59 | 42
Foreign currency derivative contracts | Level 3 | Fair value, recurring |  |
Assets |  |
Foreign currency derivative contracts | 0 | 0
Liabilities: |  |
Foreign currency derivative contracts | $ 0 | $ 0

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