Hedging Transactions and Derivative Financial Instruments (Summary of Notional Values and Pretax Impact in Fair Values of Net Investment Hedges and Cash Flow Hedges) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 25, 2026	Sep. 26, 2025	Sep. 25, 2026	Sep. 26, 2025
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Reclassified from OCI	$ (4)	$ (2)	$ 73	$ (336)
Net investment hedges \| Cross-currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	3,875	3,875	3,875	3,875
Derivative, notional amount outstanding	2,500	2,500	2,500	2,500
Gain (Loss) Recognized in OCI	(7)	22	33	(234)
Amounts Reclassified from OCI	0	0	0	0
Net investment hedges \| Foreign currency denominated debt
Derivative Instruments, Gain (Loss) [Line Items]
Nonderivative, notional amount	12,904	4,490	12,904	4,490
Net investment hedges, gain (loss), recognized in OCI	19	21	342	(405)
Amounts Reclassified from OCI	0	0	0	0
Cash flow hedges \| Cross-currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	4,000	4,000	4,000	4,000
Derivative, notional amount outstanding	2,600	2,600	2,600	2,600
Gain (Loss) Recognized in OCI	(20)	49	13	(112)
Amounts Reclassified from OCI	1	(1)	(80)	328
Cash flow hedges \| Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, original notional amount	1,600	1,600	1,600	1,600
Derivative, notional amount outstanding	0	0	0	0
Gain (Loss) Recognized in OCI	0	0	0	0
Amounts Reclassified from OCI	1	1	3	2
Cash flow and net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Original Notional Amount	22,379	13,965	22,379	13,965
Notional Amount Outstanding	18,004	9,590	18,004	9,590
Gain (Loss) Recognized in OCI	(8)	92	388	(751)
Amounts Reclassified from OCI	$ 2	$ 0	$ (77)	$ 330

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