XML 50 R35.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Acquisitions Phantom (Details) | Feb. 01, 2016
--- | ---
BP Terminal Assets |
Business Acquisition [Line Items] |
Number of terminals wholly owned | 1

X
- Definition Number of terminals wholly owned + References No definition available. + Details
Name: | kmi_Numberofterminalswhollyowned
Namespace Prefix: | kmi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=kmi_BPTerminalAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |