Income Taxes (Tables)

12 Months Ended

Sep. 30, 2011

Income Taxes [Abstract]

Provision for income taxes from continuing operations

	2011			2010			2009
Current:
Federal	$	189,997		$	307,236		$	153,030
State and local, including Puerto Rico		23,394			23,441			9,626
Foreign		220,386			170,218			135,931
	$	433,777		$	500,895		$	298,587
Deferred:
Domestic	$	(14,466	)	$	(32,762	)	$	109,925
Foreign		32,100			16,687			2,734
		17,634			(16,075	)		112,659
	$	451,411		$	484,820		$	411,246

Income from continuing operations before income taxes

	2011		2010		2009
Domestic, including Puerto Rico	$	908,179	$	889,254	$	890,934
Foreign		808,084		771,906		687,657
	$	1,716,263	$	1,661,160	$	1,578,591

Gross amounts of unrecognized tax benefits

	2011			2010			2009
Balance at October 1	$	90,064		$	50,547		$	69,698
Increase due to current year tax positions		37,792			27,662			8,901
Increase due to prior year tax positions		12,349			25,837			1,872
Decreases due to prior year tax positions		(1,815	)		(11,509	)		—
Decrease due to settlements and lapse of statute of limitations		(2,896	)		(2,473	)		(29,924	)
Balance at September 30	$	135,494		$	90,064		$	50,547

Deferred income taxes

	2011					2010
	Assets			Liabilities		Assets			Liabilities
Compensation and benefits	$	590,311		$	—	$	484,767		$	—
Property and equipment		—			433,163		—			318,640
Loss and credit carryforwards		85,731			—		116,478			—
Other		360,893			218,571		293,246			173,372
		1,036,935			651,734		894,491			492,012
Valuation allowance		(52,347	)		—		(56,425	)		—
	$	984,588		$	651,734	$	838,066		$	492,012

Reconciliation of federal statutory tax rate to company's effective tax rate

	2011			2010			2009
Federal statutory tax rate		35.0	%		35.0	%		35.0	%
State and local income taxes, net of federal tax benefit		1.1			0.9			0.6
Effect of foreign and Puerto Rico earnings and foreign tax credits		(7.2	)		(5.3	)		(7.4	)
Effect of Research Credits and Domestic Production Activities,		(2.6	)		(1.6	)		(2.7	)
Other, net		—			0.2			0.6
		26.3	%		29.2	%		26.1	%