Debt Instrument, Convertible, Threshold Consecutive Trading Days, Not Exceeding

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- Definition

Debt Instrument, Convertible, Threshold Less Than Percentage of Stock Price Trigger

+ References

No definition available.

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- Definition

Debt Instrument, Convertible, Threshold Trading Days, Not Exceeding

+ References

No definition available.

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- Definition

Line of Credit Facility, Maximum Borrowing Capacity under Specific Circumstances

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No definition available.

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- Definition

Note Hedge Shares Outstanding

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No definition available.

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- Definition

Payments for Purchase of Convertible Note Hedge and Warrant Transactions

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No definition available.

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- Definition

Potential Conversion Shares Of Convertible Debt

+ References

No definition available.

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- Definition

Value Per Conversion of Convertible Debt

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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- Definition

Number of warrants or rights outstanding.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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No definition available.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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- Definition

The cash outflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

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The cash outflow to reacquire common stock during the period.

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The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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Debt - Narrative (Details) $ / shares in Units, shares in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	May 31, 2018 USD ($) d $ / shares shares	Feb. 28, 2014 USD ($) d $ / shares shares	Jun. 30, 2018 USD ($) $ / shares	Jun. 30, 2018 USD ($) $ / shares	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Repurchases of common stock			$ 165,727,000	$ 185,512,000	$ 177,615,000
Payments for note hedge transactions				261,740,000	0
Proceeds from sale of warrants				119,945,000	$ 0
Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 500,000,000
Maximum borrowing capacity under specific conditions	$ 1,000,000,000.0
Debt term	5 years
Outstanding borrowings			0	$ 0
Credit Agreement \| Minimum
Debt Instrument [Line Items]
Commitment fee				0.075%
Credit Agreement \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.00%
Credit Agreement \| Minimum \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate				0.875%
Credit Agreement \| Maximum
Debt Instrument [Line Items]
Commitment fee				0.15%
Credit Agreement \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.25%
Credit Agreement \| Maximum \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate				1.25%
2025 Notes \| Convertible Debt
Debt Instrument [Line Items]
Debt issued	$ 1,150,000,000		1,150,000,000	$ 1,150,000,000
Interest rate	0.125%
Threshold trading days exceeding price \| d	20
Threshold consecutive trading days exceeding price \| d	30
Threshold greater than percentage of stock price trigger	130.00%
Threshold trading days not exceeding price	5 days
Threshold consecutive trading days not exceeding price	5 days
Principal amount per conversion	$ 1,000
Threshold less than percentage of stock price trigger	98.00%
Conversion rate	0.010515
Conversion price (in dollars per share) \| $ / shares	$ 95.10
Potential conversion shares of convertible debt (in shares) \| shares	12.1
Fair value of convertible senior notes			$ 1,157,200,000	$ 1,157,200,000
Closing price of common stock (in dollars per share) \| $ / shares			$ 73.23	$ 73.23
Repurchases of common stock	$ 46,200,000
Payments for purchase of convertible note hedge and warrant transactions	141,800,000
Equity component:			$ 285,225,000	$ 285,225,000
Payments for note hedge transactions	$ 261,700,000
Warrants outstanding (in shares) \| shares	12.1
Warrant strike price (in dollars per share) \| $ / shares	$ 149.18
Proceeds from sale of warrants	$ 119,900,000
Effective interest rate			4.26%	4.26%
2019 Notes \| Convertible Debt
Debt Instrument [Line Items]
Debt issued		$ 690,000,000	$ 690,000,000	$ 690,000,000		$ 690,000,000
Threshold trading days exceeding price \| d		20
Threshold consecutive trading days exceeding price \| d		30
Threshold greater than percentage of stock price trigger		130.00%
Threshold trading days not exceeding price		5 days
Threshold consecutive trading days not exceeding price		5 days
Principal amount per conversion		$ 1,000
Threshold less than percentage of stock price trigger		98.00%
Conversion rate		0.0111651
Conversion price (in dollars per share) \| $ / shares		$ 89.56
Potential conversion shares of convertible debt (in shares) \| shares		7.7
Fair value of convertible senior notes			$ 692,000,000	$ 692,000,000
Closing price of common stock (in dollars per share) \| $ / shares			$ 73.23	$ 73.23
Repurchases of common stock		$ 62,000,000
Payments for purchase of convertible note hedge and warrant transactions		23,300,000
Equity component:			$ 101,276,000	$ 101,276,000		$ 101,276,000
Payments for note hedge transactions		$ 101,300,000
Note hedge shares outstanding (in shares) \| shares		7.7
Warrants outstanding (in shares) \| shares		7.7
Warrant strike price (in dollars per share) \| $ / shares		$ 104.49
Proceeds from sale of warrants		$ 78,000,000
Effective interest rate			3.20%	3.20%