Supplemental Disclosures (Details) (PLUM CREEK TIMBERLANDS L P [Member], USD $) In Millions	Jun. 30, 2011
PLUM CREEK TIMBERLANDS L P [Member]
Senior Notes Short And Long Term	$ 1,033

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pcl_SeniorNotesShortAndLongTermNetDiscountOrPremium

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pcl

Data Type:

xbrli:monetaryItemType

Balance Type:

credit

Period Type:

instant