Total accumulated loss recognized that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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Namespace Prefix:	kmp
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of business units evaluated for impairment testing.

+ Details

Name:	kmp_BusinessUnitsNumber
Namespace Prefix:	kmp
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of equity method goodwill contained with accompanying consolidated balance sheets.

+ Details

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Namespace Prefix:	kmp
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The calculated weighted-average useful life of all finite-lived intangible assets.

+ Details

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Namespace Prefix:	kmp
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

The discount rate applied to expected future cash flows to determine fair value of each reporting unit for Goodwill impairment testing.

+ Details

Name:	kmp_GoodwillFairValueDiscountPercent
Namespace Prefix:	kmp
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ Details

Name:	kmp_GoodwillGross
Namespace Prefix:	kmp
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

+ Details

Name:	kmp_GoodwillImpairmentLossGross
Namespace Prefix:	kmp
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	kmp_IntangibleAssetsSubjectToAmortizationTableLineItems
Namespace Prefix:	kmp
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:	kmp
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	kmp_ScheduleOfGoodwillLineItems
Namespace Prefix:	kmp
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The high end range of the cash flow multiplier used to calculate the estimated terminal value for Goodwill impairment testing.

+ Details

Name:	kmp_TerminalValueMultiplierRangeHighRange
Namespace Prefix:	kmp
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The low end range of the cash flow multiplier used to calculate the estimated terminal value for Goodwill impairment testing.

+ Details

Name:	kmp_TerminalValueMultiplierRangeLowRange
Namespace Prefix:	kmp
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Aggregate amount of amortization expense recognized for intangible asset during the period. A recognized intangible asset shall be amortized over its estimated useful life to the reporting entity unless that life is determined to be indefinite. If an intangible asset has a finite useful life, but the precise length of that life is not known, that intangible asset shall be amortized over the best estimate of its useful life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(2)

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of amortization expense expected to be recognized during the fifth twelve-month period following the balance sheet date.

+ References