Debt - Senior Unsecured Notes (Details) - Senior Notes	Jun. 22, 2018 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,000,000,000.0
Redemption price percentage	101.00%
2023 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Stated interest rate	4.20%
Effective interest rate	4.423%
2028 Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 500,000,000.0
Stated interest rate	4.875%
Effective interest rate	5.012%

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

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Contractual interest rate for funds borrowed, under the debt agreement.

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No definition available.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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