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.

+ References

No definition available.

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- Definition

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

+ References

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

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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- Definition

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

+ References

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

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

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- Definition

Including the current and noncurrent portions, 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). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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Discontinued Operations (Long-Term Debt) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Oct. 31, 2016
Debt Instrument [Line Items]
Carrying value of senior debt	$ 9,430,000,000	$ 8,850,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving Credit Facility	$ 0
CBS Radio [Member] \| Discontinued Operations [Member]
Debt Instrument [Line Items]
Term Loan due October 2023, net of discount		955,000,000
Deferred financing costs		(20,000,000)
Total long-term debt, including current portion		1,345,000,000
CBS Radio [Member] \| Discontinued Operations [Member] \| 7.250% Senior Notes due November 2024 [Member]
Debt Instrument [Line Items]
Carrying value of senior debt		400,000,000
Stated interest rate	7.25%		7.25%
CBS Radio [Member] \| Discontinued Operations [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving Credit Facility		$ 10,000,000