Commitments and Contingencies (Plumbing Actions Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Loss Contingencies [Line Items]
Plumbing actions other (charges) gains	$ 6	$ 59	$ 10
Advanced Engineered Materials [Member] \| Plumbing Actions [Member]
Loss Contingencies [Line Items]
Plumbing actions other (charges) gains	6	59	10
Legal reserve reductions	$ 4	$ 45	$ 9

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