XML 44 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6

Summary of Significant Accounting Policies Reclassificatons (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2012
Reclassifications
Reclassification from Other, net to Inventory and other, net	$ 23

X

- Definition

Reclassification from Other, net to Inventory and other, net on the Consolidated Statements of Cash Flows

+ References

No definition available.

+ Details

Name:	tve_ReclassificationFromOtherNetToInventoryAndOtherNet
Namespace Prefix:	tve_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	tve_ReclassificationsLineItems
Namespace Prefix:	tve_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration