XML 147 R131.htm IDEA: XBRL DOCUMENT
v3.20.4

Litigation and Environmental - Louisiana Landowner (Details) - Judicial District of Louisiana - Louisiana Landowner Coastal Erosion Litigation | Jan. 31, 2015
--- | ---
TGP |
Loss Contingency, Pending Claims, Number | 2
SNG |
Loss Contingency, Pending Claims, Number | 2
TGP and SNG |
Loss Contingency, Pending Claims, Number | 2

X
- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=kmi_JudicialDistrictofLouisianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_LitigationCaseAxis=kmi_LouisianaLandownerCoastalErosionLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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