Debt - Senior Debentures (Details) - 6.70% Senior Debentures due 2034 - USD ($) $ in Millions	Oct. 30, 2015	Sep. 09, 2015
Debt Instrument [Line Items]
Interest rate, stated percentage		6.70%
Debt acquired in an acquisition		$ 300
Fair value discount	$ 101
Annual effective interest rate	10.96%

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

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

+ References

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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.

+ References

No definition available.

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- Definition

Debt Instrument, Fair Value Adjustment

+ References

No definition available.

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