Acquisitions Acquisition Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		Mar. 28, 2020	Sep. 28, 2019	Mar. 20, 2019
Business Acquisition [Line Items]
Goodwill		$ 80,320	$ 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				350
Film and Television Costs				(2,380)
Investments				(509)
Intangible Assets				(2,504)
Net Assets Held for Sale				(348)
Accounts Payable and Other Liabilities				(1,776)
Borrowings				0
Deferred Income Taxes				1,397
Other Net Liabilities Acquired				(114)
Noncontrolling Interest				230
Goodwill				5,496
Fair Value of Net Assets Acquired				(123)
Parents Previously Held Equity Interest in Investee Now Consolidated				123
Total Purchase Price				0
Final Allocation | TFCF
Business Acquisition [Line Items]
Cash and cash equivalents				25,701
Receivables				5,096
Film and Television Costs				17,740
Investments				962
Intangible Assets				17,881
Net Assets Held for Sale				11,356
Accounts Payable and Other Liabilities				(12,529)
Borrowings				(21,723)
Deferred Income Taxes				(5,100)
Other Net Liabilities Acquired				(3,979)
Noncontrolling Interest				(10,408)
Goodwill				49,247
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.