Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended	6 Months Ended
	Sep. 13, 2012	Mar. 31, 2016	Apr. 01, 2017
Commitments and Contingencies Disclosure [Line Items]
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions			$ 40
Unrecognized Tax Benefits			804
Impact to income tax provision from change in unrecognized tax benefits			19
Unrecognized tax benefits expected reduction due to resolutions of open tax matters			136
Unrecognized Tax Benefits that Would Impact Effective Tax Rate			31
Syndicated programming
Commitments and Contingencies Disclosure [Line Items]
Long-term receivables, net of allowance for credit losses			900
Mortgage Receivable
Commitments and Contingencies Disclosure [Line Items]
Long-term receivables, net of allowance for credit losses			$ 700
Allowance for credit losses related to long-term receivables, percentage			4.00%
Hulu Llc
Commitments and Contingencies Disclosure [Line Items]
Equity Method Investment, Ownership Percentage			30.00%
Notes Payable, Other Payables | Hulu Llc
Commitments and Contingencies Disclosure [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted			$ 113
Equity Method Investment, Summarized Financial Information, Liabilities and Equity			338
Guarantee Obligations
Commitments and Contingencies Disclosure [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted			311
Remaining debt service obligation guaranteed, principal			$ 50
Beef Products | Minimum
Commitments and Contingencies Disclosure [Line Items]
Loss Contingency, Damages Sought, Value	$ 400
Beef Products | Maximum
Commitments and Contingencies Disclosure [Line Items]
Loss Contingency, Damages Sought, Value		$ 1,900