XML 57 R48.htm IDEA: XBRL DOCUMENT
v3.24.3

Other Long-term Liabilities - Deferred Revenue (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 26, 2024 | Mar. 31, 2024 | Sep. 30, 2024 | Dec. 31, 2023
Deferred Revenue and Other [Abstract] |  |  |  |
Deferred revenue |  |  | $ 119.3 | $ 248.8
Cumulative interest on award |  |  | $ 55.8 |
Vitol [Member] |  |  |  |
Deferred Revenue and Other [Abstract] |  |  |  |
Deferred revenue |  |  |  | $ 129.0
Reclassification to accrued liabilities |  | $ 129.0 |  |
Cash payment | $ 184.8 |  |  |
Cumulative interest on award | $ 55.8 |  |  |

X
- Definition Contract with customer liability cash payment. + References No definition available. + Details
Name: | trgp_ContractWithCustomerLiabilityCashPayment
Namespace Prefix: | trgp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Contract with customer liability reclassification to accrued liabilities. + References No definition available. + Details
Name: | trgp_ContractWithCustomerLiabilityReclassificationToAccruedLiabilities
Namespace Prefix: | trgp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cumulative interest on award. + References No definition available. + Details
Name: | trgp_CumulativeInterestOnAward
Namespace Prefix: | trgp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-8 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479837/606-10-45-2 + Details
Name: | us-gaap_ContractWithCustomerLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerLiabilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=trgp_VitolAmericasCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |