Identifiable Finite and Indefinite Intangible Assets Acquired in Connection with Acquisition (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended							1 Months Ended			1 Months Ended			1 Months Ended			1 Months Ended
	Mar. 31, 2011	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited Non-compete agreements	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited Tradenames	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited Fuel supply agreements	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited Power purchase arrangements	Oct. 14, 2011 Andhra Pradesh Paper Mills Limited Wholesale distribution network	Feb. 13, 2012 Temple-Inland Inc.	Feb. 13, 2012 Temple-Inland Inc. Non-compete agreements	Feb. 13, 2012 Temple-Inland Inc. Non-compete agreements Minimum	Feb. 13, 2012 Temple-Inland Inc. Tradenames	Feb. 13, 2012 Temple-Inland Inc. Customer relationships	Feb. 13, 2012 Temple-Inland Inc. Customer relationships Minimum	Feb. 13, 2012 Temple-Inland Inc. Customer relationships Maximum	Feb. 13, 2012 Temple-Inland Inc. Developed technology rights	Feb. 13, 2012 Temple-Inland Inc. Developed technology rights Minimum	Feb. 13, 2012 Temple-Inland Inc. Developed technology rights Maximum	Feb. 13, 2012 Temple-Inland Inc. Favorable contracts	Feb. 13, 2012 Temple-Inland Inc. Favorable contracts Minimum	Feb. 13, 2012 Temple-Inland Inc. Favorable contracts Maximum
Business Acquisition [Line Items]
Estimated Fair Value		$ 91	$ 58	$ 20	$ 5	$ 5	$ 3	$ 602	$ 26		$ 103	$ 456			$ 7			$ 10
Acquired Finite Lived Intangible Assets Average Remaining Useful Life				Indefinite							Indefinite
Average Remaining Useful Life, Years										2 years			12 years	17 years		5 years	10 years		4 years	7 years
Average Remaining Useful Life, Years			6 years		2 years	5 years	18 years
Business Combination, Bargain Purchase, Gain Recognized, Net of tax	$ 7