XML 102 R94.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt And Lines Of Credit Debt and Lines of Credit (Debt Extinguishment Footnotes) (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Early Debt Extinguishment Costs [Member]      
Extinguishment of Debt [Line Items]      
Debt instrument, interest rate, stated percentage rate range, minimum 1.625%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_ExtinguishmentOfDebtAxis
= ip_EarlyDebtExtinguishmentCostsMember		    
Debt instrument, interest rate, stated percentage rate range, maximum 9.38%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_ExtinguishmentOfDebtAxis
= ip_EarlyDebtExtinguishmentCostsMember		    
Original maturity date range, minimum 2014    
Original maturity date range, maximum 2041    
Early Debt Extinguishment Costs [Member]      
Extinguishment of Debt [Line Items]      
Debt instrument, interest rate, stated percentage rate range, minimum 1.625%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember		 1.625%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember		 1.625%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember
Debt instrument, interest rate, stated percentage rate range, maximum 9.375%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember		 9.375%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember		 9.375%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= ip_EarlyDebtExtinguishmentCostsMember
Original maturity date range, minimum 2014 2014 2014
Original maturity date range, maximum 2041 2041 2041