Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 3,530	$ 3,709
Balance at end of period	3,500	3,582
Retirement benefit obligations
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(29)	(52)
Total before income tax	0	0
Income tax benefit	0	0
Current period comprehensive income (loss), net of tax	0	0
Balance at end of period	(29)	(52)
Amortization of net loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	0	0
Interest rate swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(5)	(2)
Change in fair value of interest rate swaps	0	(8)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	2	0
Total before income tax	2	(8)
Income tax benefit	0	(2)
Current period comprehensive income (loss), net of tax	2	(6)
Balance at end of period	(3)	(8)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(34)	(54)
Balance at end of period	$ (32)	$ (60)