Hedging Transactions And Derivative Financial Instruments (Summary of Notional Values and Pretax Impact in Fair Values of Net Investment Hedges) (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 02, 2021	Apr. 03, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative and nonderivative, original notional amount	$ 10,658	$ 13,978
Derivative and nonderivative, notional amount	9,783	13,103
Derivative and nonderivative, gain (loss) recognized in OCI	353	900
Net investment hedges \| Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	2,875	1,875
Derivative, notional amount outstanding	2,000	1,000
Derivative, gain (loss) recognized in OCI	23	93
Net investment hedges \| Foreign currency denominated debt
Derivative Instruments, Gain (Loss) [Line Items]
Nonderivative, notional amount	3,783	8,103
Nonderivative, gain (loss) recognized in OCI	220	156
Cash flow hedges \| Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	4,000	4,000
Derivative, notional amount outstanding	4,000	4,000
Derivative, gain (loss) recognized in OCI	$ 110	$ 651

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Derivative and Nonderivative, Notional Amount

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Nominal or face amount used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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