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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

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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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
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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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No definition available.

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Debt (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
Debt (Narrative) (Details) - USD ($) $ in Millions	Feb. 29, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 304	$ 1,421
Debt issued		$ 5,300		5,300		$ 5,528
Loss from early extinguishments of debt		0	$ 9	27	$ 9
Senior Secured Borrowings [Member] \| U.S. Dollar at LIBOR plus 1.75% due 2018 [Member]
Debt Instrument [Line Items]
Proceeds from long-term debt	$ 300
Debt issued		1,131		1,131		831
Senior Notes and Debentures [Member] \| U.S. Dollar 6.25% due 2021 [Member]
Debt Instrument [Line Items]
Debt issued	$ 700	$ 0		$ 0		700
Debt instrument stated percentage	6.25%	6.25%		6.25%
Loss from early extinguishments of debt				$ 27
Fair Value, Inputs, Level 2 [Member]
Debt Instrument [Line Items]
Long-term debt, fair value		$ 5,443		$ 5,443		$ 5,540