Comprehensive Income/(Loss) and Shareholders' Equity (Details) $ in Millions	3 Months Ended
	Mar. 29, 2025 USD ($)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 49,551
Ending Balance	49,357
Currency translation adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(2,409)
Other comprehensive income/(loss) before reclassifications	360
Amounts reclassified from accumulated other comprehensive income/(loss)	(4)
Net other comprehensive income/(loss)	356
Ending Balance	(2,053)
Unrealized gains/(losses) on hedging instruments
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(25)
Other comprehensive income/(loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income/(loss)	1
Net other comprehensive income/(loss)	1
Ending Balance	(24)
Pension and other postretirement benefit liability adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(263)
Other comprehensive income/(loss) before reclassifications	(3)
Amounts reclassified from accumulated other comprehensive income/(loss)	1
Net other comprehensive income/(loss)	(3)
Ending Balance	(265)
Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(2,697)
Other comprehensive income/(loss) before reclassifications	357
Amounts reclassified from accumulated other comprehensive income/(loss)	(3)
Net other comprehensive income/(loss)	354
Ending Balance	$ (2,343)