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STOCK-BASED INCENTIVE PLANS (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-Based Payment Award |  |  |
Aggregate number of shares authorized for issuance (in shares) | 133,000,000 |  |
Number of shares awarded to date (in shares) | 16,000,000 |  |
Number of shares counted for each share covered by an award in determining the number of shares that are available for future awards (in shares) | 3 |  |
Certain stock-based incentive amounts |  |  |
Compensation expense | $ 287 | $ 202 | $ 208
Income tax benefit recognized in the income statement | 60 | $ 42 | $ 43
Unrecognized compensation expense | $ 225 |  |
Weighted-average period over which unrecognized compensation expense is expected to be recognized | 1 year 8 months 12 days |  |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Issued (in shares) | 2,522,000 | 36,130,000 | 3,188,000
Stock options, grant date fair value (in dollars per share) | $ 12.72 |  |
Options, weighted average strike price |  |  |
Options exercised (in shares) | 0 | 0 | 0
Vested |  |  |
Outstanding stock options |  |  |
Stock options, number of shares outstanding, beginning balance (in shares) | 1,326,000 |  |
Granted (in shares) | 0 |  |
Vested (in shares) | (910,000) |  |
Stock options, number of shares outstanding, ending balance (in shares) | 2,236,000 | 1,326,000 |
Options, weighted average strike price |  |  |
Stock options, weighted average strike price, beginning balance (in dollars per share) | $ 55.38 |  |
Stock options, granted, weighted average strike price (in dollars per share) | 0 |  |
Stock options, vested, weighted average strike price (in dollars per share) | 40.03 |  |
Stock options, weighted average strike price, ending balance (in dollars per share) | $ 49.13 | $ 55.38 |
Unvested |  |  |
Outstanding stock options |  |  |
Stock options, number of shares outstanding, beginning balance (in shares) | 1,900,000 |  |
Granted (in shares) | 440,000 |  |
Vested (in shares) | (910,000) |  |
Stock options, number of shares outstanding, ending balance (in shares) | 1,430,000 | 1,900,000 |
Options, weighted average strike price |  |  |
Stock options, weighted average strike price, beginning balance (in dollars per share) | $ 40,030.00 |  |
Stock options, granted, weighted average strike price (in dollars per share) | 25.39 |  |
Stock options, vested, weighted average strike price (in dollars per share) | 40.03 |  |
Stock options, weighted average strike price, ending balance (in dollars per share) | $ 35.52 | $ 40,030.00 |
High end of range |  |  |
Share-based Compensation Arrangement by Share-Based Payment Award |  |  |
Maximum shares available for future issuance (in shares) | 68,700,000 |  |
Common Stock | Non-employee directors |  |  |
Share-based Compensation Arrangement by Share-Based Payment Award |  |  |
Restricted stock granted to non-employee directors (in shares) | 88,802 |  |
RSUs | Low end of range |  |  |
Certain stock-based incentive amounts |  |  |
Award vesting period | 1 year |  |
RSUs | High end of range |  |  |
Certain stock-based incentive amounts |  |  |
Award vesting period | 3 years |  |
Cash-Settled RSUs |  |  |
Certain stock-based incentive amounts |  |  |
Cash paid | $ 4 | $ 3 | $ 4
Roll-forward of stock awards other than options and SARS. |  |  |
Unvested, beginning of period (in shares) | 5,457,000 |  |
Granted (in shares) | 190,000 |  |
Vested (in shares) | (166,000) |  |
Forfeitures (in shares) | (106,000) |  |
Unvested, end of period (in shares) | 5,375,000 | 5,457,000 |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Unvested, beginning of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 42.41 |  |
Granted, Weighted-Average Grant-Date Fair Value (in dollars per share) | 25.83 | $ 40.86 | $ 42.62
Vested, Weighted-Average Grant-Date Fair Value (in dollars per share) | 56.36 |  |
Forfeitures, Weighted-Average Grant-Date Fair Value (in dollars per share) | 40.08 |  |
Unvested, end of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 41.44 | $ 42.41 |
Vested (in shares) | 166,000 |  |
Stock-Settled RSUs |  |  |
Certain stock-based incentive amounts |  |  |
Fair value of shares vested during the year | $ 70 | $ 62 | $ 148
Roll-forward of stock awards other than options and SARS. |  |  |
Unvested, beginning of period (in shares) | 5,856,000 |  |
Granted (in shares) | 5,773,000 |  |
Vested (in shares) | (2,750,000) |  |
Forfeitures (in shares) | (290,000) |  |
Unvested, end of period (in shares) | 8,589,000 | 5,856,000 |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Unvested, beginning of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 50.21 |  |
Granted, Weighted-Average Grant-Date Fair Value (in dollars per share) | 25.45 | $ 41.60 | $ 58.73
Vested, Weighted-Average Grant-Date Fair Value (in dollars per share) | 53.27 |  |
Forfeitures, Weighted-Average Grant-Date Fair Value (in dollars per share) | 35.07 |  |
Unvested, end of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 33.10 | $ 50.21 |
Payouts for share-based awards granted as a percentage of target | 95.00% |  |
Issued (in shares) | 2,605,000 |  |
Vested (in shares) | 2,750,000 |  |
TSRIs |  |  |
Certain stock-based incentive amounts |  |  |
Award vesting period | 3 years |  |
Fair value of shares vested during the year | $ 4 | $ 9 | $ 4
Grant-date assumptions used in the Monte Carlo simulation models |  |  |
Risk-free interest rate (as a percent) | 0.20% | 1.40% | 2.50%
Volatility factor (as a percent) | 75.00% | 26.00% | 22.00%
Expected life (years) | 2 years 10 months 17 days | 3 years | 3 years
Grant-date fair value of underlying Occidental common stock (in dollars per share) | $ 25.39 | $ 41.60 | $ 67.19
Roll-forward of stock awards other than options and SARS. |  |  |
Unvested, beginning of period (in shares) | 1,534,000 |  |
Granted (in shares) | 665,000 |  |
Vested (in shares) | (420,000) |  |
Forfeitures (in shares) | (10,000) |  |
Unvested, end of period (in shares) | 1,769,000 | 1,534,000 |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Unvested, beginning of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 58.02 |  |
Granted, Weighted-Average Grant-Date Fair Value (in dollars per share) | 25.39 |  |
Vested, Weighted-Average Grant-Date Fair Value (in dollars per share) | 69.87 |  |
Forfeitures, Weighted-Average Grant-Date Fair Value (in dollars per share) | 25.39 |  |
Unvested, end of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 43.12 | $ 58.02 |
Payouts for share-based awards granted as a percentage of target | 34.00% |  |
Issued (in shares) | 145,000 |  |
Vested (in shares) | 420,000 |  |
TSRIs | Low end of range |  |  |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Payouts for share-based awards granted as a percentage of target | 0.00% |  |
TSRIs | High end of range |  |  |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Payouts for share-based awards granted as a percentage of target | 200.00% |  |
Options |  |  |
Certain stock-based incentive amounts |  |  |
Award vesting period | 3 years |  |
Grant-date assumptions used in the Monte Carlo simulation models |  |  |
Risk-free interest rate (as a percent) | 0.70% |  |
Volatility factor (as a percent) | 55.00% |  |
Expected life (years) | 6 years |  |
Dividend yield | 0.16% |  |
Grant-date fair value of underlying Occidental common stock (in dollars per share) | $ 25.39 |  |
Option and SAR transactions |  |  |
Options, weighted average strike price |  |  |
Remaining life of options | 6 years 10 months 24 days |  |
CROCEI awards |  |  |
Certain stock-based incentive amounts |  |  |
Award vesting period | 3 years |  |
Roll-forward of stock awards other than options and SARS. |  |  |
Unvested, beginning of period (in shares) | 197,000 |  |
Granted (in shares) | 221,000 |  |
Unvested, end of period (in shares) | 418,000 | 197,000 |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Unvested, beginning of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 41.60 |  |
Granted, Weighted-Average Grant-Date Fair Value (in dollars per share) | 25.39 |  |
Unvested, end of period, Weighted-Average Grant-Date Fair Value (in dollars per share) | $ 33.03 | $ 41.60 |
CROCEI awards | Low end of range |  |  |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Payouts for share-based awards granted as a percentage of target | 0.00% |  |
CROCEI awards | High end of range |  |  |
Stock awards other than options and SARs, Weighted-Average Grant-Date Fair Value (in dollars per share) |  |  |
Payouts for share-based awards granted as a percentage of target | 200.00% |  |

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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