Commitments and Contingencies (Plumbing Actions Narrative) (Details) (Advanced Engineered Materials [Member], Plumbing Actions [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Advanced Engineered Materials [Member] \| Plumbing Actions [Member]
Loss Contingencies [Line Items]
Plumbing actions other (charges) gains		$ 59
Legal reserve reductions	$ 4

The increase (decrease) during the reporting period in other noncurrent operating liabilities not separately disclosed in the statement of cash flows.

No definition available.

Name:	us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration