Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA".

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- Definition

Expiration date of collective-bargaining arrangement (CBA) requiring contribution to multiemployer pension plan determined to be individually significant, in CCYY-MM-DD format.

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- Definition

Amount of cost for employer contribution to multiemployer pension plan determined to be individually significant.

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- Definition

Employer Identification Number (EIN) or Tax Identification Number (TIN) assigned by Internal Revenue Service (IRS) for multiemployer pension plan determined to be individually significant, in nine-digit numeric format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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Pension and Other Postretirement Benefits (Multiemployer Pension and Postretirement Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension benefits [Member]
Multiemployer Plans [Line Items]
Company Contributions	$ 120	$ 164	$ 151
Pension benefits [Member] \| AFTRA Retirement Plan [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	136414972
Pension Protection Act	Green	Green
Company Contributions	$ 13	$ 12	11
Pension benefits [Member] \| AFTRA Retirement Plan [Member] \| Minimum [Member]
Multiemployer Plans [Line Items]
Expiration Date of Collective Bargaining Agreement	Jun. 30, 2020
Pension benefits [Member] \| AFTRA Retirement Plan [Member] \| Maximum [Member]
Multiemployer Plans [Line Items]
Expiration Date of Collective Bargaining Agreement	Jun. 30, 2021
Pension benefits [Member] \| Directors Guild Of America Producer [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	952892780
Pension Protection Act	Green	Green
Company Contributions	$ 16	$ 19	15
Expiration Date of Collective Bargaining Agreement	Jun. 30, 2020
Pension benefits [Member] \| Producer Writers Guild Of America [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	952216351
Pension Protection Act	Green	Green
Company Contributions	$ 22	$ 26	25
Expiration Date of Collective Bargaining Agreement	May 01, 2020
Pension benefits [Member] \| Screen Actors Guild Producers [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	952110997
Pension Protection Act	Green	Green
Company Contributions	$ 24	$ 43	36
Expiration Date of Collective Bargaining Agreement	Jun. 30, 2020
Pension benefits [Member] \| Motion Picture Industry [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	951810805
Pension Protection Act	Green	Green
Company Contributions	$ 35	$ 43	42
Pension benefits [Member] \| Motion Picture Industry [Member] \| Minimum [Member]
Multiemployer Plans [Line Items]
Expiration Date of Collective Bargaining Agreement	May 15, 2021
Pension benefits [Member] \| Motion Picture Industry [Member] \| Maximum [Member]
Multiemployer Plans [Line Items]
Expiration Date of Collective Bargaining Agreement	Mar. 02, 2022
Pension benefits [Member] \| I.A.T.S.E. Local No. 33 Pension Trust Fund [Member]
Multiemployer Plans [Line Items]
Employer Identification Number/Pension Plan Number	956377503
Pension Protection Act	Green	Green
Company Contributions	$ 3	$ 5	10
Expiration Date of Collective Bargaining Agreement	Dec. 31, 2022
Pension benefits [Member] \| Other Plans [ Member]
Multiemployer Plans [Line Items]
Company Contributions	$ 7	16	12
Postretirement benefits [Member]
Multiemployer Plans [Line Items]
Company Contributions	$ 95	$ 89	$ 74