Shareholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Components of Accumulated Other Comprehensive Income (Loss)
Beginning Balance	$ 7,113	$ 6,815
Ending Balance	6,987	7,113
Accumulated Other Comprehensive Loss
Components of Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(612)	(789)
Other comprehensive income (loss) before reclassifications	(38)	108
Reclassified from Accumulated other comprehensive loss	6	69
Ending Balance	(644)	(612)
Pension and Postretirement Benefits Adjustments
Components of Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(516)	(799)
Other comprehensive income (loss) before reclassifications	(82)	214
Reclassified from Accumulated other comprehensive loss	0	69
Ending Balance	(598)	(516)
Foreign Currency Translation Adjustments
Components of Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(94)	9
Other comprehensive income (loss) before reclassifications	45	(103)
Reclassified from Accumulated other comprehensive loss	0	0
Ending Balance	(49)	(94)
Deferred Gains (Losses) on Hedge Contracts
Components of Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(2)	1
Other comprehensive income (loss) before reclassifications	(1)	(3)
Reclassified from Accumulated other comprehensive loss	6	0
Ending Balance	$ 3	$ (2)