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v3.20.4

LONG-TERM DEBT - SCHEDULE (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 35,200 |
Long-term finance leases | 316 | $ 347
Current finance leases | 42 | 51
Total debt and finance leases | 36,185 | 38,588
Less current maturities of financing leases | (42) | (51)
Less current maturities of long-term debt | (398) | 0
Long-term debt, net | 35,745 | 38,537
Occidental |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 35,235 | 37,401
Unamortized discount, net | 748 | 914
Debt issuance costs | (156) | (125)
Long-term finance leases | 316 | 347
Long-term debt, net | $ 35,745 | $ 38,537
4.850% senior notes due 2021 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.85% | 4.85%
Long-term debt, gross | $ 147 | $ 677
2.600% senior notes due 2021 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 2.60% | 2.60%
Long-term debt, gross | $ 224 | $ 1,500
4.100% senior note due 2021 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.10% | 4.10%
Long-term debt, gross | $ 0 | $ 1,249
Variable rate bonds due 2021 | Variable rate bonds | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable rate | 1.193% | 2.854%
Long-term debt, gross | $ 27 | $ 500
Variable rate bonds due 2021, 3.151% | Variable rate bonds | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable rate | 3.151% | 3.151%
Long-term debt, gross | $ 0 | $ 500
2-year variable rate Term Loan due 2021, 3.111% | Secured Debt | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable rate | 3.111% | 3.111%
Debt instrument, term | 2 years | 2 years
Long-term debt, gross | $ 0 | $ 1,956
2.700% senior notes due 2022 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 2.70% | 2.70%
Long-term debt, gross | $ 629 | $ 2,000
3.125% senior notes due 2022 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.125% | 3.125%
Long-term debt, gross | $ 276 | $ 814
2.600% senior notes due 2022 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 2.60% | 2.60%
Long-term debt, gross | $ 101 | $ 400
Variable rate bonds due 2022 | Variable rate bonds | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable rate | 1.73% | 3.36%
Long-term debt, gross | $ 1,052 | $ 1,500
2.700% senior notes due 2023 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 2.70% | 2.70%
Long-term debt, gross | $ 927 | $ 1,191
8.750% medium-term notes due 2023 | Medium-term notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 8.75% | 8.75%
Long-term debt, gross | $ 22 | $ 22
2.900% senior notes due 2024 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 2.90% | 2.90%
Long-term debt, gross | $ 3,000 | $ 3,000
6.950% senior notes due 2024 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.95% | 6.95%
Long-term debt, gross | $ 650 | $ 650
3.450% senior notes due 2024 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.45% | 3.45%
Long-term debt, gross | $ 248 | $ 248
8.000% senior notes due 2025 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 8.00% | 8.00%
Long-term debt, gross | $ 500 | $ 0
5.875% senior notes due 2025 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 5.875% | 5.875%
Long-term debt, gross | $ 900 | $ 0
3.500% senior notes due 2025 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.50% | 3.50%
Long-term debt, gross | $ 750 | $ 750
5.500% senior notes due 2025 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 5.50% | 5.50%
Long-term debt, gross | $ 750 | $ 0
5.550% senior notes due 2026 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 5.55% | 5.55%
Long-term debt, gross | $ 1,100 | $ 1,100
3.200% senior notes due 2026 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.20% | 3.20%
Long-term debt, gross | $ 1,000 | $ 1,000
3.400% senior notes due 2026 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.40% | 3.40%
Long-term debt, gross | $ 1,150 | $ 1,150
7.500% debentures due 2026 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.50% | 7.50%
Long-term debt, gross | $ 112 | $ 112
8.500% senior notes due 2027 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 8.50% | 8.50%
Long-term debt, gross | $ 500 | $ 0
3.000% senior notes due 2027 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.00% | 3.00%
Long-term debt, gross | $ 750 | $ 750
7.125% debentures due 2027 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.125% | 7.125%
Long-term debt, gross | $ 150 | $ 150
7.000% debentures due 2027 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.00% | 7.00%
Long-term debt, gross | $ 48 | $ 48
6.625% debentures due 2028 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.625% | 6.625%
Long-term debt, gross | $ 14 | $ 14
7.150% debentures due 2028 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.15% | 7.15%
Long-term debt, gross | $ 235 | $ 235
7.200% senior debentures due 2028 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.20% | 7.20%
Long-term debt, gross | $ 82 | $ 82
6.375% senior notes due 2028 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.375% | 6.375%
Long-term debt, gross | $ 600 | $ 0
7.200% debentures due 2029 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.20% | 7.20%
Long-term debt, gross | $ 135 | $ 135
7.950% debentures due 2029 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.95% | 7.95%
Long-term debt, gross | $ 116 | $ 116
8.450% senior debentures due 2029 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 8.45% | 8.45%
Long-term debt, gross | $ 116 | $ 116
3.500% senior notes due 2029 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 3.50% | 3.50%
Long-term debt, gross | $ 1,500 | $ 1,500
Variable rate bonds due 2030 | Variable rate bonds | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument, variable rate | 4.21% | 1.705%
Long-term debt, gross | $ 68 | $ 68
8.875% senior notes due 2030 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 8.875% | 8.875%
Long-term debt, gross | $ 1,000 | $ 0
6.625% senior notes due 2030 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.625% | 6.625%
Long-term debt, gross | $ 1,500 | $ 0
6.125% senior notes due 2031 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.125% | 6.125%
Long-term debt, gross | $ 1,250 | $ 0
7.500% senior notes due 2031 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.50% | 7.50%
Long-term debt, gross | $ 900 | $ 900
7.875% senior notes due 2031 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.875% | 7.875%
Long-term debt, gross | $ 500 | $ 500
6.450% senior notes due 2036 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.45% | 6.45%
Long-term debt, gross | $ 1,750 | $ 1,750
Zero Coupon senior notes due 2036 | Senior notes |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 5.24% |
Zero Coupon senior notes due 2036 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 2,269 | $ 2,271
6.500% note payable to WES due 2038 | Note payable | WES |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.50% | 6.50%
Long-term debt, gross | $ 0 | $ 260
4.300% senior notes due 2039 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.30% | 4.30%
Long-term debt, gross | $ 750 | $ 750
7.950% senior notes due 2039 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.95% | 7.95%
Long-term debt, gross | $ 325 | $ 325
6.200% senior notes due 2040 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.20% | 6.20%
Long-term debt, gross | $ 750 | $ 750
4.500% senior notes due 2044 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.50% | 4.50%
Long-term debt, gross | $ 625 | $ 625
4.625% senior notes due 2045 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.625% | 4.625%
Long-term debt, gross | $ 750 | $ 750
6.600% senior notes due 2046 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 6.60% | 6.60%
Long-term debt, gross | $ 1,100 | $ 1,100
4.400% senior notes due 2046 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.40% | 4.40%
Long-term debt, gross | $ 1,200 | $ 1,200
4.100% senior notes due 2047 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.10% | 4.10%
Long-term debt, gross | $ 750 | $ 750
4.200% senior notes due 2048 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.20% | 4.20%
Long-term debt, gross | $ 1,000 | $ 1,000
4.400% senior notes due 2049 | Senior notes | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 4.40% | 4.40%
Long-term debt, gross | $ 750 | $ 750
7.730% debentures due 2096 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.73% | 7.73%
Long-term debt, gross | $ 60 | $ 60
7.500% debentures due 2096 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.50% | 7.50%
Long-term debt, gross | $ 78 | $ 78
7.250% debentures due 2096 | Debentures | Occidental |  |
Debt Instrument [Line Items] |  |
Debt instrument interest rate stated percentage | 7.25% | 7.25%
Long-term debt, gross | $ 49 | $ 49

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