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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
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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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