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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Apr. 02, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	May 31, 2009
Stock-Based Compensation by Award [Line Items]
Number of shares available for grant			2,700
Unrecognized compensation costs on unvested options			$ 42,000,000
Employee Stock Purchase Plan [Abstract]
Maximum contribution allowed under employee stock purchase plan as % of employee's earnings			15.00%
Total number of shares purchased under employee stock purchase plan			1,400
Plan period employee stock purchase plan, in months			3 months
Purchase price calculation for shares of stock under employee stock purchase plan			The purchase price for each share of stock is the lesser of 90% of the market price on the first day of the plan period or 100% of the market price on the last day of the plan period.
Stock-Based Compensation Fair Value Assumptions and Methodology [Abstract]
Weighted-average grant date fair value of options granted			$ 45.73	$ 37.44	$ 35.84
Stock Options Outstanding Roll Forward [Abstract]
Options outstanding at beginning of period			2,697
Options granted			389	324	673
Options exercised			(972)	(730)	(727)
Options canceled			(75)
Options outstanding at end of period			2,039	2,697
Weighted-average exercise price of options outstanding at beginning of period			$ 106.55
Weighted-average exercise price of options granted			170.24	$ 135.02	$ 127.63
Weighted-average exercise price of options exercised			93.49
Weighted average exercise price of options canceled			120.59
Weighted-average exercise price of options outstanding at end of period			$ 124.41	$ 106.55
Additional Disclosures Related to Stock Options [Abstract]
Total intrinsic value of options exercised in the period			$ 76,000,000	$ 53,000,000	$ 48,000,000
Proceeds from stock plans			97,789,000	62,189,000	52,060,000
Intrinsic value of options outstanding			$ 140,000,000
Weighted-average remaining contractual term of options exercisable			5 years 7 months
Options Vested and Expected to Vest [Abstract]
Number of options outstanding which are vested and expected to vest			2,000
Aggregate intrinsic value of outstanding options which are vested and expect to vest			$ 137,000,000
Weighted-average exercise price of outstanding options which are vested and expected to vest			$ 124.18
Weighted-average remaining contractual term of outstanding options which are vested and expected to vest			7 years 2 months
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense			$ 39,436,000	40,998,000	$ 33,368,000
Incremental stock-based compensation cost due to acceleration of awards	$ 4,000,000	$ 7,000,000	$ 4,000,000	$ 7,000,000
Stock Options by Exercise Price Range [Line Items]
Weighted-average remaining contractual life of options outstanding			7 years 5 months
Number of options exercisable			855	1,300	1,500
Weighted-average exercise price of exercisable options			$ 103.63	$ 92.26	$ 80.71
Minimum
Stock Options Outstanding Roll Forward [Abstract]
Weighted-average exercise price of options outstanding at beginning of period			38.09
Weighted-average exercise price of options granted			136.43
Weighted-average exercise price of options exercised			41.2
Weighted average exercise price of options canceled			87.06
Weighted-average exercise price of options outstanding at end of period			38.09	38.09
Maximum
Stock Options Outstanding Roll Forward [Abstract]
Weighted-average exercise price of options outstanding at beginning of period			139.51
Weighted-average exercise price of options granted			194.26
Weighted-average exercise price of options exercised			139.51
Weighted average exercise price of options canceled			139.51
Weighted-average exercise price of options outstanding at end of period			$ 194.26	$ 139.51
Employee Stock Purchase Plan
Stock-Based Compensation by Award [Line Items]
Stock-based compensation costs			$ 1,000,000	$ 1,000,000	$ 1,000,000
Stock Options
Stock-Based Compensation by Award [Line Items]
Award expiration period			10 years
Award vesting period			5 years
Weighted-average period of recognition for unrecognized compensation costs on nonvested awards			3 years 6 months
Stock-Based Compensation Fair Value Assumptions and Methodology [Abstract]
Fair value assumptions, risk free interest rate			2.20%	1.90%	1.80%
Fair value assumptions, expected life in years			6 years	6 years	6 years
Fair value assumptions, expected volatility			22.70%	24.70%	25.70%
Fair value assumptions, expected dividends			$ 0	$ 0	$ 0
Additional Disclosures Related to Stock Options [Abstract]
Proceeds from stock plans			91,000,000	56,000,000	47,000,000
Restricted Stock Plan
Stock-Based Compensation by Award [Line Items]
Stock-based compensation costs			$ 1,000,000	$ 1,000,000	$ 1,000,000
Unvested Awards Roll Forward
Shares granted			8	8	10
Unvested shares at end of period			6
Weighted-average grant date fair value of shares granted			$ 140.1	$ 130.35	$ 113.88
Restricted Stock Unit Plan
Stock-Based Compensation by Award [Line Items]
Award vesting period			5 years
Stock-based compensation costs			$ 17,000,000	$ 17,000,000	$ 16,000,000
Unrecognized compensation costs on unvested awards			$ 32,000,000
Weighted-average period of recognition for unrecognized compensation costs on nonvested awards			3 years
Unvested Awards Roll Forward
Unvested shares at beginning of period			453
Shares granted			107
Shares vested			(164)
Shares forfeited			(22)
Unvested shares at end of period			374	453
Weighted-average grant date fair value of shares unvested at beginning of period			$ 110.34
Weighted-average grant date fair value of shares granted			154.6
Weighted-average grant date fair value of shares vested			105.02
Weighted-average grant date fair value of shares forfeited			119.27
Weighted-average grant date fair value of shares unvested at end of period			$ 124.81	$ 110.34
Performance Stock Unit Plan
Stock-Based Compensation by Award [Line Items]
Stock-based compensation costs			$ 2,000,000
Stock-based compensation costs, less than $1 million				less than $1 million
Unrecognized compensation costs on unvested awards			$ 10,000,000
Weighted-average period of recognition for unrecognized compensation costs on nonvested awards			2 years 6 months
Stock-Based Compensation Fair Value Assumptions and Methodology [Abstract]
Fair value assumptions, risk free interest rate			1.60%
Fair value assumptions, expected life in years			3 years
Fair value assumptions, expected volatility			20.90%
Fair value assumptions, expected volatility of peer companies			25.60%
Fair value assumptions, correlation coefficient			37.80%
Fair value assumptions, expected dividends			$ 0
Unvested Awards Roll Forward
Unvested shares at beginning of period			27
Shares granted			40
Shares forfeited			(3)
Unvested shares at end of period			64	27
Weighted-average grant date fair value of shares unvested at beginning of period			$ 171.16
Weighted-average grant date fair value of shares granted			210.25
Weighted-average grant date fair value of shares forfeited			156.25
Weighted-average grant date fair value of shares unvested at end of period			$ 196.29	$ 171.16
Performance Stock Unit Plan | Minimum
Stock-Based Compensation by Award [Line Items]
Award vesting rights			0.00%
Performance Stock Unit Plan | Maximum
Stock-Based Compensation by Award [Line Items]
Award vesting rights			200.00%
Employee Stock Purchase Plan of 2009 [Member] | Employee Stock Purchase Plan
Employee Stock Purchase Plan [Abstract]
Number of shares authorized under plan						900
Cost of sales [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense			$ 3,032,000	$ 2,738,000	2,590,000
Selling and administrative expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense			33,335,000	34,451,000	26,431,000
Research and development expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense			$ 3,069,000	$ 3,809,000	$ 4,347,000
Range $38.09 to $79.99 [Member]
Stock Options by Exercise Price Range [Line Items]
Number of outstanding options			157
Weighted-average exercise price of outstanding options			$ 67.58
Weighted-average remaining contractual life of options outstanding			2 years 8 months
Number of options exercisable			157
Weighted-average exercise price of exercisable options			$ 67.58
Range $80.00 to $113.36 [Member]
Stock Options by Exercise Price Range [Line Items]
Number of outstanding options			642
Weighted-average exercise price of outstanding options			$ 103.01
Weighted-average remaining contractual life of options outstanding			6 years 2 months
Number of options exercisable			391
Weighted-average exercise price of exercisable options			$ 98.74
Range $113.37 to $139.51 [Member]
Stock Options by Exercise Price Range [Line Items]
Number of outstanding options			1,240
Weighted-average exercise price of outstanding options			$ 142.69
Weighted-average remaining contractual life of options outstanding			8 years 7 months
Number of options exercisable			307
Weighted-average exercise price of exercisable options			$ 128.26

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Amount of cash inflow from issuance of shares under share-based compensation arrangement. Issuance includes, but is not limited to, exercise of stock options and similar instruments.

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Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Weighted average price of options that were either forfeited or expired.

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