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Capital Structure Debt Percentage

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Collateral Coverage Ratio

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM format.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY format.

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Ratio of EBITDA to interest expense

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Purchase Of Note Principal

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Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing.

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

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

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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.

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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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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in CCYY-MM-DD format.

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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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Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt (Narrative) (Details)	1 Months Ended						6 Months Ended		12 Months Ended
Debt (Narrative) (Details)	Jul. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Feb. 29, 2016	Nov. 30, 2015 USD ($)	Jan. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2015 USD ($)	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Debt instrument		$ 5,807,000,000					$ 5,807,000,000				$ 4,733,000,000
Payments on long-term debt								$ 500,000,000
Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		5,806,000,000					5,806,000,000				4,732,000,000
Long-term Debt [Member] \| 2013 Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		66,000,000					66,000,000					$ 2,000,000,000
Repayment of line of credit		285,000,000
Borrowings		$ 0					$ 0
Debt percentage of adjusted book capital structure covenant		60.00%					60.00%
Credit facility, maturity date							Dec. 01, 2018
Long-term Debt [Member] \| 2016 Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 743,000,000					$ 743,000,000
Long-term Debt [Member] \| 2013 & 2016 Credit Facilities [Member]
Debt Instrument [Line Items]
Borrowings		0					0
Long-term Debt [Member] \| Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument											$ 116,000,000
Credit facility, maturity date											Dec. 01, 2018
Long-term Debt [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowings		169,000,000					$ 169,000,000
Senior Notes [Member]
Debt Instrument [Line Items]
Proceeds from issuance of debt					$ 2,200,000,000
Senior Notes [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Purchase of note principal	$ 700,000,000
Senior Notes [Member] \| Over LIBOR [Member]
Debt Instrument [Line Items]
Incremental increase on basis points							0.25%
Increase in basis spread			1.75%
Bridge Loan [Member]
Debt Instrument [Line Items]
Debt instrument, term					364 days	364 days					364 days
Bridge loan					$ 4,500,000,000	$ 4,500,000,000					$ 4,500,000,000
Debt issuance costs					47,000,000
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 1,934,000,000					$ 1,934,000,000
Maturity date, month and year		2020-12
Incremental increase, EBITDA to Interest Expense Ratio		0.25
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Minimum [Member]
Debt Instrument [Line Items]
EBITDA to Interest Expense Ratio		0.75
Liquidity requirement		$ 300,000,000					300,000,000
Anti-hoarding provision, required unrestricted cash		$ 100,000,000					100,000,000
Collateral coverage ratio		1.50
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Minimum [Member] \| Scenario, Forecast [Member]
Debt Instrument [Line Items]
EBITDA to Interest Expense Ratio									1.50	1.50
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Liquidity requirement		$ 500,000,000					500,000,000
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Eurodollar [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis points		1.75%
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Eurodollar [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis points		2.50%
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis points		0.75%
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis points		1.50%
Revolving Credit Facility And Term Loan Facility [Member] \| Long-term Debt [Member] \| Over LIBOR [Member]
Debt Instrument [Line Items]
Basis points		2.50%
Term Loan due December 2020 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		$ 1,191,000,000					$ 1,191,000,000
Maturity date, month and year							2020-12
Term Loan due December 2020 [Member] \| Long-term Debt [Member] \| Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		1,191,000,000					$ 1,191,000,000
Term Loan due December 2016 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Maturity date, month and year							2016-12
Loans payable		500,000,000				$ 500,000,000	$ 500,000,000
Debt instrument, term						2 years
3.3% Senior Notes due January 2018 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		$ 350,000,000					$ 350,000,000				$ 350,000,000
Maturity date, month and year							2018-01				2018-01
Senior notes					$ 350,000,000
Stated interest rate		3.30%			3.30%		3.30%				3.30%
Maturity date, year					2018
Percentage of face amount, sold to public					99.949%
3.3% Senior Notes due January 2018 [Member] \| Long-term Debt [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Payments on long-term debt	312,000,000
4.05% Senior Notes due January 2020 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		$ 850,000,000					$ 850,000,000				$ 850,000,000
Maturity date, month and year							2020-01				2020-01
Senior notes					$ 850,000,000
Stated interest rate		4.05%			4.05%		4.05%				4.05%
Maturity date, year					2020
Percentage of face amount, sold to public					99.897%
4.95% Senior Notes due January 2025 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		$ 1,000,000,000					$ 1,000,000,000				$ 1,000,000,000
Maturity date, month and year							2025-01				2025-01
Senior notes					$ 1,000,000,000
Stated interest rate		4.95%			4.95%		4.95%				4.95%
Maturity date, year					2025
Percentage of face amount, sold to public					99.782%
Term Loan due November 2018 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument		$ 750,000,000					$ 750,000,000				$ 750,000,000
Maturity date, month and year							2018-11				2018-11
Loans payable				$ 750,000,000
Debt instrument, term				3 years
Term Loan due November 2018 [Member] \| Long-term Debt [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Payments on long-term debt	375,000,000
Term Loan due November 2018 [Member] \| Long-term Debt [Member] \| Over LIBOR [Member]
Debt Instrument [Line Items]
Basis points				2.50%
Common Stock [Member]
Debt Instrument [Line Items]
Proceeds from issuance of shares					$ 669,000,000
Common Stock [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Proceeds from issuance of shares	$ 1,247,000,000
Depositary Shares [Member]
Debt Instrument [Line Items]
Proceeds from issuance of shares					$ 1,700,000,000