Contract with Customer, Asset and Liability (Details) - USD ($) $ in Millions	Dec. 29, 2018	Sep. 30, 2018	Sep. 29, 2018	Sep. 30, 2017
Contract with Customer, Asset, Gross	$ 146	$ 89
Accounts Receivable, Gross, Current	9,543	8,553	$ 8,268	$ 7,611
Accounts Receivable, Gross, Noncurrent	1,561	1,640
Allowance for Doubtful Accounts Receivable	(230)	(226)
Deferred Revenue and Credits, Current	2,968	2,926
Deferred Revenue and Credits, Noncurrent	$ 514	$ 609

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

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Amounts due from customers or clients, more than one year from the balance sheet date, for goods or services that have been delivered or sold in the normal course of business.

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

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Total carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer.

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Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such after one year or beyond the normal operating cycle, if longer.

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