Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended	9 Months Ended
	Dec. 31, 2009	Sep. 30, 2012 Fox River Site [Member]	Dec. 31, 2011 Fox River Site [Member]	Jun. 30, 2009 Fox River Site [Member]	Sep. 30, 2012 Total Clean Up Costs, Fox River Site [Member]	Sep. 30, 2012 Total Natrual Resource Damages, Fox River Site [Member]	Sep. 30, 2012 Total Natrual Resource Damages, Fox River Site [Member] Maximum [Member]	Sep. 30, 2012 Total Natrual Resource Damages, Fox River Site [Member] Minimum [Member]	Sep. 30, 2012 Fox River LLC [Member]	Dec. 31, 2011 Fox River LLC [Member]	Sep. 30, 2012 Pending or Threatened Litigation [Member]	Apr. 10, 2012 Pending or Threatened Litigation [Member]	Sep. 30, 2012 Kalamazoo River Site [Member]
Loss Contingencies [Line Items]
Accounts Receivable, Related Parties, Current											$ 29
Pecentage of Arbitration Award												60.00%
Amount Recorded by Related Party Under Arbitration Award											42.5
Fox River LLC Funding Remainder Other Current Asset									7	1
Promissory Note, Original Maximum Obligation				20
Promissory Note, Current Maximum Obligation		15
Portion Of Costs Below Threshold, Percentage		45.00%
Threshold For Environmental Cleanup Costs		75
Portion Of Costs Exceeding Threshold, Percentage		40.00%
Number of Defendants													3
Consent Decrees Filed By Government	12
Estimated Total Clean Up Costs		852
Percentage Contingency for Probable Cost Overruns					15.00%
Estimated Total Clean Up Costs With Additional Overrun Contingency					898
Estimated Total NRD Costs						76
Estimated Maximum NRD Costs							246	0
Estimated Federal Government Maximum NRD Costs						382
Anticipated Allocable Total Site Costs, Maximum		100.00%
Net Loss Contingency Accrual									133	160
Estimate of AT&T and Actel-Lucent's Portion of Payout, Recorded As Long Term Asset		79	79
Total Amount Received from Settlements with Insurance Carriers		162
Portion of Insurance Settlements Subject to Competing Claims		9
NCRs Agreed Upon Share of Insurance Settlements Subject to Competing Claims		4
Judgement Against Insurance Company, Amount Awarded, Pending Appeal		5
Alleged Portion Of GP Clean Up Costs													$ 79
Number of Potentially Responsible Parties		8
Additional Potentially Responsible Parties		4
Number of Insurance Companies Not Settled		1