Commitments and Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) claims	Dec. 31, 2015 USD ($) claims	Dec. 31, 2014 USD ($) claims
Other Commitments [Line Items]
Programming and talent commitments, payments due 2017	$ 1,987
Programming and talent commitments, payments due 2018	2,036
Programming and talent commitments, payments due 2019	1,758
Programming and talent commitments, payments due 2020	1,485
Programming and talent commitments, payments due 2021	1,515
Programming and talent commitments, payments due 2022 and thereafter	2,297
Programming and talent commitments, total future minimum payments	11,078
Unrecorded purchase obligations paydown by year [Abstract]
Purchase obligations, payments due 2017	222
Purchase obligations, payments due 2018	216
Purchase obligations, payments due 2019	163
Purchase obligations, payments due 2020	156
Purchase obligations, payments due 2021	20
Purchase obligations, payments due 2022 and thereafter	58
Purchase obligations, total future minimum payments	835
Recorded purchase obligations paydown by year [Abstract]
Other long-term contractual obligations, payments due 2017	0
Other long-term contractual obligations, payments due 2018	635
Other long-term contractual obligations, payments due 2019	393
Other long-term contractual obligations, payments due 2020	196
Other long-term contractual obligations, payments due 2021	86
Other long-term contractual obligations, payments due 2022 and thereafter	63
Other long-term contractual obligations, total future minimum payments	1,373
Capital lease obligations paydown by year [Abstract]
Capital leases, payments due 2017	19
Capital leases, payments due 2018	18
Capital leases, payments due 2019	15
Capital leases, payments due 2020	14
Capital leases, payments due 2021	12
Capital leases, payments due 2022 and thereafter	5
Capital leases, total future minimum payments	83
Capital leases, less amounts representing interest	8
Capital Leases, present value of net minimum payments	75
Operating lease obligation paydown by year [Abstract]
Operating leases, payments due 2017	134
Operating leases, payments due 2018	113
Operating leases, payments due 2019	98
Operating leases, payments due 2020	74
Operating leases, payments due 2021	68
Operating leases, payments due 2022 and thereafter	276
Operating leases, total future minimum payments	763
Future minimum sublease income	64
Outstanding letters of credit and surety bonds	103
Loss Contingencies [Line Items]
Cost for settlement and defense of asbestos claims, net of insurance recoveries and tax benefits	48	$ (5)
Continuing Operations [Member]
Other Commitments [Line Items]
Rent expense	167	174	$ 170
Discontinued Operations [Member]
Other Commitments [Line Items]
Rent expense	36	$ 37	$ 194
Sports programming rights commitments [Member]
Other Commitments [Line Items]
Programming and talent commitments, total future minimum payments	8,060
Production and licensing of television and film programming [Member]
Other Commitments [Line Items]
Programming and talent commitments, total future minimum payments	2,260
Talent contracts [Member]
Other Commitments [Line Items]
Programming and talent commitments, total future minimum payments	$ 758
Asbestos Claims [Member]
Loss Contingencies [Line Items]
Number of pending asbestos claims | claims	33,610	36,030	41,100
Number of new asbestos claims | claims	4,160
Number of asbestos claims closed or moved to inactive docket | claims	6,580