Subsequent Event (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2012 Embedded Computing & Power [Member]
Subsequent Event [Line Items]
Impairment Charge					$ 450
Net sales	$ 5,960	$ 5,919	$ 11,513	$ 11,228	$ 1,400

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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+ Details