FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets:
Available-for-sale debt securities	$ 2,326	$ 2,293
Other publicly traded equity securities
Assets:
Total	4,551	5,248
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement
Assets:
Total	6,909	7,600
Liabilities:
Total	575	538
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| MYR GmbH
Liabilities:
Liability for MYR GmbH (“MYR”) contingent consideration	277	275
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Galapagos
Assets:
Marketable equity securities	639	736
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Arcus
Assets:
Marketable equity securities	252	286
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| U.S. treasury securities
Assets:
Available-for-sale debt securities	344	410
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| U.S. government agencies securities
Assets:
Available-for-sale debt securities	155	35
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Non-U.S. government securities
Assets:
Available-for-sale debt securities	23	34
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Certificates of deposit
Assets:
Available-for-sale debt securities	90	54
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Corporate debt securities
Assets:
Available-for-sale debt securities	1,379	1,427
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Residential mortgage and asset-backed securities
Assets:
Available-for-sale debt securities	335	333
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Money market funds
Assets:
Marketable equity securities	3,175	3,831
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Other publicly traded equity securities
Assets:
Marketable equity securities	235	175
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Deferred compensation plan
Assets:
Marketable equity securities	249	220
Liabilities:
Deferred compensation plan	249	220
Fair Value, Measurements, Recurring \| Estimate of Fair Value Measurement \| Foreign currency derivative contracts
Assets:
Foreign currency derivative contracts	32	60
Liabilities:
Foreign currency derivative contracts	49	42
Fair Value, Measurements, Recurring \| Level 1
Assets:
Total	4,895	5,658
Liabilities:
Total	249	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	639	736
Fair Value, Measurements, Recurring \| Level 1 \| Arcus
Assets:
Marketable equity securities	252	286
Fair Value, Measurements, Recurring \| Level 1 \| U.S. treasury securities
Assets:
Available-for-sale debt securities	344	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	3,175	3,831
Fair Value, Measurements, Recurring \| Level 1 \| Other publicly traded equity securities
Assets:
Marketable equity securities	235	175
Fair Value, Measurements, Recurring \| Level 1 \| Deferred compensation plan
Assets:
Marketable equity securities	249	220
Liabilities:
Deferred compensation plan	249	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	2,014	1,943
Liabilities:
Total	49	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	155	35
Fair Value, Measurements, Recurring \| Level 2 \| Non-U.S. government securities
Assets:
Available-for-sale debt securities	23	34
Fair Value, Measurements, Recurring \| Level 2 \| Certificates of deposit
Assets:
Available-for-sale debt securities	90	54
Fair Value, Measurements, Recurring \| Level 2 \| Corporate debt securities
Assets:
Available-for-sale debt securities	1,379	1,427
Fair Value, Measurements, Recurring \| Level 2 \| Residential mortgage and asset-backed securities
Assets:
Available-for-sale debt securities	335	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	32	60
Liabilities:
Foreign currency derivative contracts	49	42
Fair Value, Measurements, Recurring \| Level 3
Assets:
Total	0	0
Liabilities:
Total	277	275
Fair Value, Measurements, Recurring \| Level 3 \| MYR GmbH
Liabilities:
Liability for MYR GmbH (“MYR”) contingent consideration	277	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

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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