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Fair Value Measurements Nonrecurring Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
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Jun. 30, 2013
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Sep. 30, 2012
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| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Equipment impairment | $ 158 | |
| Carrying value of property, plant and equipment | 2,974 | 2,851 |
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QMT [Member]
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| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Carrying value of property, plant and equipment | $ 745 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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