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. 26, 2025	Sep. 27, 2024	Sep. 26, 2025	Sep. 27, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Reclassified from OCI	$ (2)	$ (143)	$ (336)	$ (51)
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	3,000	2,500	3,000
Gain (Loss) Recognized in OCI	22	(97)	(234)	10
Amounts Reclassified from OCI	0	0	0	0
Net investment hedges | Foreign currency denominated debt
Derivative Instruments, Gain (Loss) [Line Items]
Nonderivative, notional amount	4,490	3,294	4,490	3,294
Net investment hedges, gain (loss), recognized in OCI	21	(185)	(405)	(3)
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	3,300	2,600	3,300
Gain (Loss) Recognized in OCI	49	(77)	(112)	1
Amounts Reclassified from OCI	(1)	140	328	41
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	0	2	2
Cash flow and net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Original Notional Amount	13,965	12,769	13,965	12,769
Notional Amount Outstanding	9,590	9,594	9,590	9,594
Gain (Loss) Recognized in OCI	92	(359)	(751)	8
Amounts Reclassified from OCI	$ 0	$ 140	$ 330	$ 43