Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Dec. 31, 2012	Mar. 31, 2012
Income Taxes [Line Items]
Effective income tax rate	20.00%			66.00%
Income tax benefit	$ 64			$ (31)
Effective Income Tax Rate, Discontinued Operations	0.10%			31.60%
Environmental remediation costs	12			159
Business restructuring	0		12	208
Costs related to business acquisitions	7	[1]		6	[1]
Estimate, Tax deductable seperation costs percentage	20.00%
Environmental Remediation Expense [Member]
Income Taxes [Line Items]
Effective income tax rate	37.40%			37.70%
Income tax benefit	4			60
Canadian Pension Settlement Charges [Domain]
Income Taxes [Line Items]
Effective income tax rate	26.70%
Income tax benefit	5
Business Restructuring Reserves [Member]
Income Taxes [Line Items]
Effective income tax rate				21.40%
Income tax benefit				45
Acquisition-related Costs [Member]
Income Taxes [Line Items]
Effective income tax rate	19.10%			28.60%
Income tax benefit	1			2
Tax benefit from retroactive U.S. tax law change [Domain]
Income Taxes [Line Items]
Income tax benefit	10
Costs Related to Separation and Merger Transaction [Member]
Income Taxes [Line Items]
Effective income tax rate	20.00%
Income tax benefit	1
Remaining Amount [Member]
Income Taxes [Line Items]
Effective income tax rate	24.00%			23.50%
Income tax benefit	$ 85			$ 76
Spraylat [Member] | Acquisition-related Costs [Member]
Income Taxes [Line Items]
Effective income tax rate	36.50%

[1] For the three months ended March 31, 2013, the expense includes the flow-through cost of sales of the step up to fair value of inventory acquired from Spraylat and advisory, legal, accounting, valuation and other professional or consulting fees incurred in connection with acquisition activity. For the three months ended March 31, 2012, the expense represents the flow-through cost of sales of the step up to fair value of inventory acquired from Dyrup and Colpisa. These costs are considered to be unusual and non-recurring and do not reduce the segment earnings used to evaluate the performance of the operating segments.