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FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Available-for-sale debt securities | $ 2,341 | $ 2,293
Other publicly traded equity securities |  |
Assets: |  |
Total | 5,730 | 5,248
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement |  |
Assets: |  |
Total | 8,096 | 7,600
Liabilities: |  |
Total | 592 | 538
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | MYR GmbH |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 288 | 275
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Galapagos |  |
Assets: |  |
Marketable equity securities | 682 | 736
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Arcus |  |
Assets: |  |
Marketable equity securities | 301 | 286
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | U.S. treasury securities |  |
Assets: |  |
Available-for-sale debt securities | 375 | 410
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | U.S. government agencies securities |  |
Assets: |  |
Available-for-sale debt securities | 161 | 35
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Non-U.S. government securities |  |
Assets: |  |
Available-for-sale debt securities | 15 | 34
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt securities | 104 | 54
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt securities | 1,338 | 1,427
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Residential mortgage and asset-backed securities |  |
Assets: |  |
Available-for-sale debt securities | 346 | 333
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Money market funds |  |
Assets: |  |
Marketable equity securities | 4,253 | 3,831
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Other publicly traded equity securities |  |
Assets: |  |
Marketable equity securities | 226 | 175
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Deferred compensation plan |  |
Assets: |  |
Marketable equity securities | 268 | 220
Liabilities: |  |
Deferred compensation plan | 267 | 220
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement | Foreign currency derivative contracts |  |
Assets: |  |
Foreign currency derivative contracts | 25 | 60
Liabilities: |  |
Foreign currency derivative contracts | 36 | 42
Fair Value, Measurements, Recurring | Level 1 |  |
Assets: |  |
Total | 6,105 | 5,658
Liabilities: |  |
Total | 267 | 220
Fair Value, Measurements, Recurring | Level 1 | MYR GmbH |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Galapagos |  |
Assets: |  |
Marketable equity securities | 682 | 736
Fair Value, Measurements, Recurring | Level 1 | Arcus |  |
Assets: |  |
Marketable equity securities | 301 | 286
Fair Value, Measurements, Recurring | Level 1 | U.S. treasury securities |  |
Assets: |  |
Available-for-sale debt securities | 375 | 410
Fair Value, Measurements, Recurring | Level 1 | U.S. government agencies securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Non-U.S. government securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Residential mortgage and asset-backed securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Money market funds |  |
Assets: |  |
Marketable equity securities | 4,253 | 3,831
Fair Value, Measurements, Recurring | Level 1 | Other publicly traded equity securities |  |
Assets: |  |
Marketable equity securities | 226 | 175
Fair Value, Measurements, Recurring | Level 1 | Deferred compensation plan |  |
Assets: |  |
Marketable equity securities | 268 | 220
Liabilities: |  |
Deferred compensation plan | 267 | 220
Fair Value, Measurements, Recurring | Level 1 | Foreign currency derivative contracts |  |
Assets: |  |
Foreign currency derivative contracts | 0 | 0
Liabilities: |  |
Foreign currency derivative contracts | 0 | 0
Fair Value, Measurements, Recurring | Level 2 |  |
Assets: |  |
Total | 1,991 | 1,943
Liabilities: |  |
Total | 36 | 42
Fair Value, Measurements, Recurring | Level 2 | MYR GmbH |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | Galapagos |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | Arcus |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | U.S. treasury securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | U.S. government agencies securities |  |
Assets: |  |
Available-for-sale debt securities | 161 | 35
Fair Value, Measurements, Recurring | Level 2 | Non-U.S. government securities |  |
Assets: |  |
Available-for-sale debt securities | 15 | 34
Fair Value, Measurements, Recurring | Level 2 | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt securities | 104 | 54
Fair Value, Measurements, Recurring | Level 2 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt securities | 1,338 | 1,427
Fair Value, Measurements, Recurring | Level 2 | Residential mortgage and asset-backed securities |  |
Assets: |  |
Available-for-sale debt securities | 346 | 333
Fair Value, Measurements, Recurring | Level 2 | Money market funds |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | Other publicly traded equity securities |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | Deferred compensation plan |  |
Assets: |  |
Marketable equity securities | 0 | 0
Liabilities: |  |
Deferred compensation plan | 0 | 0
Fair Value, Measurements, Recurring | Level 2 | Foreign currency derivative contracts |  |
Assets: |  |
Foreign currency derivative contracts | 25 | 60
Liabilities: |  |
Foreign currency derivative contracts | 36 | 42
Fair Value, Measurements, Recurring | Level 3 |  |
Assets: |  |
Total | 0 | 0
Liabilities: |  |
Total | 288 | 275
Fair Value, Measurements, Recurring | Level 3 | MYR GmbH |  |
Liabilities: |  |
Liability for MYR GmbH (“MYR”) contingent consideration | 288 | 275
Fair Value, Measurements, Recurring | Level 3 | Galapagos |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Arcus |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | U.S. treasury securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | U.S. government agencies securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Non-U.S. government securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Certificates of deposit |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Corporate debt securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Residential mortgage and asset-backed securities |  |
Assets: |  |
Available-for-sale debt securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Money market funds |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Other publicly traded equity securities |  |
Assets: |  |
Marketable equity securities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Deferred compensation plan |  |
Assets: |  |
Marketable equity securities | 0 | 0
Liabilities: |  |
Deferred compensation plan | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Foreign currency derivative contracts |  |
Assets: |  |
Foreign currency derivative contracts | 0 | 0
Liabilities: |  |
Foreign currency derivative contracts | $ 0 | $ 0

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