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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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