Acquisitions Acquisition Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		Dec. 28, 2019	Sep. 28, 2019	Mar. 20, 2019
Business Acquisition [Line Items]
Goodwill		$ 80,314	$ 80,293
Initial Allocation | TFCF
Business Acquisition [Line Items]
Cash and cash equivalents	[1]			$ 25,666
Receivables	[1]			4,746
Film and Television Costs	[1]			20,120
Investments	[1]			1,471
Intangible Assets	[1]			20,385
Net Assets Held for Sale	[1]			11,704
Accounts Payable and Other Liabilities	[1]			(10,753)
Borrowings	[1]			(21,723)
Deferred Income Taxes	[1]			(6,497)
Other Net Liabilities Acquired	[1]			(3,865)
Noncontrolling Interest	[1]			(10,638)
Goodwill	[1]			43,751
Fair Value of Net Assets Acquired	[1]			74,367
Parents Previously Held Equity Interest in Investee Now Consolidated	[1]			(4,860)
Total Purchase Price	[1]			69,507
Valuation Adjustments | TFCF
Business Acquisition [Line Items]
Cash and cash equivalents				35
Receivables				471
Film and Television Costs				(2,304)
Investments				(509)
Intangible Assets				(2,504)
Net Assets Held for Sale				(295)
Accounts Payable and Other Liabilities				(1,705)
Borrowings				0
Deferred Income Taxes				1,240
Other Net Liabilities Acquired				(144)
Noncontrolling Interest				230
Goodwill				5,362
Fair Value of Net Assets Acquired				(123)
Parents Previously Held Equity Interest in Investee Now Consolidated				123
Total Purchase Price				0
Updated Allocation | TFCF
Business Acquisition [Line Items]
Cash and cash equivalents				25,701
Receivables				5,217
Film and Television Costs				17,816
Investments				962
Intangible Assets				17,881
Net Assets Held for Sale				11,409
Accounts Payable and Other Liabilities				(12,458)
Borrowings				(21,723)
Deferred Income Taxes				(5,257)
Other Net Liabilities Acquired				(4,009)
Noncontrolling Interest				(10,408)
Goodwill				49,113
Fair Value of Net Assets Acquired				74,244
Parents Previously Held Equity Interest in Investee Now Consolidated				(4,737)
Total Purchase Price				$ 69,507

[1] As reported in our March 30, 2019 Form 10-Q.