Income Taxes (Tables)

12 Months Ended

Sep. 29, 2017

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

Income before income taxes consists of the following components (in millions):

	Fiscal Years Ended
	September 29, 2017		September 30, 2016		October 2, 2015
United States	$	681.2	$	697.5	$	602.1
Foreign	575.8		503.1		421.5
Income before income taxes	$	1,257.0	$	1,200.6	$	1,023.6

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes consists of the following (in millions):

	Fiscal Years Ended
	September 29, 2017		September 30, 2016			October 2, 2015
Current tax expense (benefit):
Federal	$	215.7	$	181.8		$	199.5
State	0.3		0.1			(0.5		)
Foreign	24.4		25.8			33.9
	240.4		207.7			232.9
Deferred tax expense (benefit):
Federal	5.0		(0.8		)	(2.0		)
Foreign	1.4		(1.5		)	(5.6		)
	6.4		(2.3		)	(7.6		)
Provision for income taxes	$	246.8	$	205.4		$	225.3

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense as computed at the United States federal statutory income tax rate to the provision for income tax expense is as follows (in millions):

	Fiscal Years Ended
	September 29, 2017			September 30, 2016			October 2, 2015
Tax expense at United States statutory rate	$	439.9		$	420.2		$	358.3
Foreign tax rate difference	(179.4		)	(164.1		)	(120.9		)
Research and development credits	(16.3		)	(33.7		)	(15.0		)
Change in tax reserve	12.6			18.9			25.5
Change in valuation allowance	11.8			13.9			4.4
Domestic production activities deduction	(19.8		)	(19.1		)	(19.7		)
Audit settlements and adjustments	—			(21.4		)	—
Other, net	(2.0		)	(9.3		)	(7.3		)
Provision for income taxes	$	246.8		$	205.4		$	225.3

Schedule of Deferred Tax Assets and Liabilities

Deferred income tax assets and liabilities consist of the tax effects of temporary differences related to the following (in millions):

	Fiscal Years Ended
	September 29, 2017			September 30, 2016
Deferred tax assets:
Inventory	$	7.4		$	8.1
Bad debts	0.1			0.2
Accrued compensation and benefits	7.1			5.4
Product returns, allowances and warranty	5.2			8.6
Restructuring	0.1			0.8
Intangible assets	10.6			11.6
Share-based and other deferred compensation	40.2			40.2
Net operating loss carry forwards	7.7			7.4
Non-United States tax credits	20.1			14.7
State tax credits	71.0			64.0
Property, plant and equipment	7.9			—
Other, net	2.7			5.6
Deferred tax assets	180.1			166.6
Less valuation allowance	(90.9		)	(79.1		)
Net deferred tax assets	89.2			87.5
Deferred tax liabilities:
Prepaid insurance	(0.9		)	(0.8		)
Property, plant and equipment	(24.8		)	(16.5		)
Intangible assets	(6.2		)	(8.4		)
Net deferred tax liabilities	(31.9		)	(25.7		)
Total net deferred tax assets	$	57.3		$	61.8

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows (in millions):

	Unrecognized tax benefits
Balance at September 30, 2016	$	79.7
Decreases based on positions related to prior years	(0.9		)
Increases based on positions related to current year	14.5
Decreases relating to settlements with taxing authorities	(2.6		)
Decreases relating to lapses of applicable statutes of limitations	(0.3		)
Balance at September 29, 2017	$	90.4