Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Dec. 29, 2019
Derivative [Line Items]
Available-for-sale Securities, Equity Securities	$ 826		$ 1,148
Accumulated other comprehensive income on derivatives, after tax	$ 675
Reclassification of foreign exchange contracts into earnings, period	next 12 months
Maximum length of time for hedge exposure	18 months
Unrealized gains on equity investments	$ 2	$ 0
Weighted average interest rate on non-current debt	3.26%
Excess of the estimated fair value over the carrying value of debt			3,000
Reversal of contingent consideration	$ 977	(32)
Forward foreign exchange contracts
Derivative [Line Items]
Collateral Already Posted, Aggregate Fair Value	2,000
Derivative, Notional Amount	44,000		45,300
Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Notional Amount	20,100		20,100
Interest Rate Contract
Derivative [Line Items]
Derivative Asset, Noncurrent			$ 1
Equity Investments without readily determinable value | Equity Securities
Derivative [Line Items]
Equity, Fair Value Adjustment, Impairment Loss	33
Other (income) expense
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0	0
Fair Value Hedging [Member] | Sales [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Fair Value Hedging [Member] | Cost of Sales [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Fair Value Hedging [Member] | Research and Development Expense [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Fair Value Hedging [Member] | Interest Income Expense Net Member | Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	40	38
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	40	38
Fair Value Hedging [Member] | Other (income) expense | Cross currency interest rate swaps
Derivative [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Cash Flow Hedging [Member] | Sales [Member] | Forward foreign exchange contracts
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	9	(21)
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	11	(6)
Cash Flow Hedging [Member] | Sales [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Cash Flow Hedging [Member] | Cost of Sales [Member] | Forward foreign exchange contracts
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	(173)	(35)
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	302	(296)
Cash Flow Hedging [Member] | Cost of Sales [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Cash Flow Hedging [Member] | Research and Development Expense [Member] | Forward foreign exchange contracts
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	(110)	(139)
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	(110)	(110)
Cash Flow Hedging [Member] | Research and Development Expense [Member] | Cross currency interest rate swaps
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Cash Flow Hedging [Member] | Interest Income Expense Net Member | Forward foreign exchange contracts
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	0	0
Cash Flow Hedging [Member] | Interest Income Expense Net Member | Cross currency interest rate swaps
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	98	55
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	625	59
Cash Flow Hedging [Member] | Other (income) expense | Forward foreign exchange contracts
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	(2)	6
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	(36)	(13)
Cash Flow Hedging [Member] | Other (income) expense | Cross currency interest rate swaps
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	0	0
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax	$ 0	$ 0