Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Number of Fixed-to-Variable Interest Rate Swap Agreements Entered Into

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Risk Management Interest Rate Risk Management (Details) (Interest Rate Swap [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Mar. 30, 2015
Derivative [Line Items]
Derivative, Notional Amount	$ 9,700invest_DerivativeNotionalAmount	$ 9,200invest_DerivativeNotionalAmount
KMI 5.625% Senior Notes due November 15, 2023 [Member]
Derivative [Line Items]
Derivative, Notional Amount			600
Number of Fixed-to-Variable Interest Rate Swap Agreements Entered Into	$ 0
Interest rate, stated percentage	5.625%