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Incentive Program (Narrative) (Details) shares in Thousands, $ in Millions |  | 12 Months Ended
--- | --- | ---
May 03, 2024 installment shares | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares
Long-term incentive awards (in shares) |  | 10,496 |  |
Vested (shares) |  | (8,185) |  |
Forfeited (shares) |  | (528) |  |
2003 Incentive Program |  |  |  |
Minimum ownership of affiliates needed for awards |  | 50.00% |  |
Options and stock appreciation rights grant, minimum percentage of market value, date of grant |  | 100.00% |  |
Share-based compensation arrangement by share-based payment award expiration period |  | 10 years |  |
Number of shares issuable under incentive program, maximum |  | 220,000 |  |
Remaining shares available for award incentive program |  | 47,000 |  |
Restricted Stock [Member] |  |  |  |
Long-term incentive awards (in shares) |  | 10,393 | 9,701 | 9,392
Percent of the shares in each award vesting after three years |  | 50.00% |  |
Percent of the shares in each award vesting after seven years |  | 50.00% |  |
Percent of shares in each award vesting after five years |  | 50.00% |  |
Percent of shares in each award vesting in later of ten years or retirement |  | 50.00% |  |
Unrecognized compensation cost | $ |  | $ 2,588 |  |
Unrecognized compensation cost, weighted-average period of recognition, years |  | 4 years 7 months 6 days |  |
Compensation cost charged against income | $ |  | $ 835 | $ 611 | $ 648
Income tax benefit recognized in income | $ |  | 73 | 50 | 52
Fair value of shares/awards vested | $ |  | 980 | 892 | 1,027
Cash payments, vested restricted stock units | $ |  | $ 87 | $ 79 | $ 89
Restricted Stock [Member] | Pioneer Amended And Restated 2006 Long Term Incentive Plan |  |  |  |
Share-based compensation arrangement by share-based payment award expiration period | 3 years |  |  |
Number of shares issuable under incentive program, maximum | 9,458 |  |  |
Remaining shares available for award incentive program |  | 9,362 |  |
Long-term incentive awards (in shares) |  | 760 |  |
Vesting period | 3 years |  |  |
Share-based compensation arrangement by share-based payment Award, Number Of Vesting Installments | installment | 3 |  |  |
Vested (shares) |  | (67) |  |
Forfeited (shares) |  | (209) |  |
Restricted Stock [Member] | Share-based Payment Arrangement, Tranche One [Member] | Pioneer Amended And Restated 2006 Long Term Incentive Plan |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 33.33% |  |  |
Restricted Stock [Member] | Share-based Payment Arrangement, Tranche Two [Member] | Pioneer Amended And Restated 2006 Long Term Incentive Plan |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 33.33% |  |  |
Restricted Stock [Member] | Share-Based Payment Arrangement, Tranche Three | Pioneer Amended And Restated 2006 Long Term Incentive Plan |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage | 33.33% |  |  |
Restricted Stock [Member] | Management, Professional, And Technical Participants |  |  |  |
Vesting period |  | 3 years |  |
Restricted Stock [Member] | Minimum [Member] |  |  |  |
Vesting period |  | 3 years |  |
Restricted Stock [Member] | Minimum [Member] | Executive Officer [Member] |  |  |  |
Vesting period |  | 5 years |  |
Restricted Stock [Member] | Maximum [Member] |  |  |  |
Vesting period |  | 7 years |  |
Restricted Stock [Member] | Maximum [Member] | Executive Officer [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |
Vesting period |  | 10 years |  |
Restricted Stock [Member] | Maximum [Member] | Executive Officer [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |
Vesting period |  | 10 years |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made 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://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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