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DEBT AND CREDIT FACILITIES - Summary of Debt Carrying Amount (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Total debt, net | $ 24,987 |  | $ 25,229
Less: Current portion of long-term debt and other obligations, net | 1,798 |  | 2,273
Total Long-term debt, net | 23,189 |  | 22,957
Senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Total debt, net | $ 24,000 |  |
Senior notes | 2.50% Senior Unsecured Notes Due in September 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 2.50% |  |
Total debt, net | $ 0 |  | 749
Senior notes | 0.75% Senior Unsecured Notes Due in September 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 0.75% |  |
Total debt, net | $ 0 |  | 1,498
Senior notes | 3.70% Senior Unsecured Notes Due in April 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 3.70% |  |
Total debt, net | $ 1,750 |  | 1,748
Senior notes | 3.50% Senior Unsecured Notes Due in February 2025 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 3.50% |  |
Total debt, net | $ 1,749 |  | 1,748
Senior notes | 3.65% Senior Unsecured Notes Due in March 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 3.65% |  |
Total debt, net | $ 2,744 |  | 2,742
Senior notes | 2.95% Senior Unsecured Notes Due in March 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 2.95% |  |
Total debt, net | $ 1,248 |  | 1,247
Senior notes | 1.20% Senior Unsecured Notes Due October 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 1.20% |  |
Total debt, net | $ 747 |  | 747
Senior notes | 1.65% Senior Unsecured Notes Due October 2030 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 1.65% |  |
Total debt, net | $ 994 |  | 993
Senior notes | 5.25% Senior Unsecured Notes Due October 2033 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 5.25% | 5.25% |
Total debt, net | $ 992 |  | 0
Senior notes | 4.60% Senior Unsecured Notes Due in September 2035 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.60% |  |
Total debt, net | $ 993 |  | 993
Senior notes | 4.00% Senior Unsecured Notes Due in September 2036 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.00% |  |
Total debt, net | $ 743 |  | 742
Senior notes | 2.60% Senior Unsecured Notes Due October 2040 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 2.60% |  |
Total debt, net | $ 988 |  | 988
Senior notes | 5.65% Senior Unsecured Notes Due in December 2041 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 5.65% |  |
Total debt, net | $ 996 |  | 996
Senior notes | 4.80% Senior Unsecured Notes Due in April 2044 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.80% |  |
Total debt, net | $ 1,737 |  | 1,736
Senior notes | 4.50% Senior Unsecured Notes Due in February 2045 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.50% |  |
Total debt, net | $ 1,734 |  | 1,733
Senior notes | 4.75% Senior Unsecured Notes Due in March 2046 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.75% |  |
Total debt, net | $ 2,222 |  | 2,221
Senior notes | 4.15% Senior Unsecured Notes Due in March 2047 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 4.15% |  |
Total debt, net | $ 1,729 |  | 1,728
Senior notes | 2.80% Senior Unsecured Notes Due October 2050 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 2.80% |  |
Total debt, net | $ 1,478 |  | 1,477
Senior notes | 5.55% Senior Unsecured Notes Due October 2053 |  |  |
Debt Instrument [Line Items] |  |  |
Interest Rate | 5.55% | 5.55% |
Total debt, net | $ 988 |  | 0
Senior Notes and Medium-Term Notes |  |  |
Debt Instrument [Line Items] |  |  |
Total senior unsecured notes | 23,834 |  | 24,088
Liability related to future royalties |  |  |
Debt Instrument [Line Items] |  |  |
Total debt, net | $ 1,153 |  | $ 1,141

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