Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Current assets:
Cash and cash equivalents	$ 1,223.2	$ 1,188.6
Short-term investments	474.5	848.4
Accounts receivable, net	520.0	485.9
Inventories	1,124.5	1,241.5
Prepaid expenses and other current assets	256.7	196.5
Deferred income taxes, net	211.3	238.7
Total current assets	3,810.2	4,199.6
Long-term investments	44.4	116.0
Equity and cost investments	424.5	459.9
Property, plant and equipment, net	2,845.3	2,658.9
Other assets	514.8	385.7
Goodwill	863.6	399.1
TOTAL ASSETS	8,502.8	8,219.2
LIABILITIES AND EQUITY
Accounts payable	355.7	398.1
Accrued liabilities	1,075.4	1,133.8
Insurance reserves	170.7	167.7
Deferred revenue	667.9	510.2
Total current liabilities	2,269.7	2,209.8
Long-term debt	549.6	549.6
Other long-term liabilities	356.0	345.3
Total liabilities	3,175.3	3,104.7
Shareholders' equity:
Common stock ($0.001 par value) — authorized, 1,200.0 shares; issued and outstanding, 748.3 shares and 749.3 shares (includes 3.4 common stock units), respectively	0.7	0.7
Additional paid-in capital	39.4	39.4
Retained earnings	5,298.6	5,046.2
Accumulated other comprehensive income (loss)	(17.3)	22.7
Total shareholders' equity	5,321.4	5,109.0
Noncontrolling interests	6.1	5.5
Total equity	5,327.5	5,114.5
TOTAL LIABILITIES AND EQUITY	$ 8,502.8	$ 8,219.2