Severance and Facility Closure Costs (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended			20 Months Ended
	May 31, 2020	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019	Dec. 25, 2021
Restructuring Cost and Reserve [Line Items]
Beginning Balance		$ 42	$ 14
Charges Incurred		44	82
Cash Payments		(58)	(54)
Ending Balance		28	42	$ 14	$ 28
Maximize B2B Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Charges Incurred		14			95
Cash Payments		(24)
Business Acceleration Program
Restructuring Cost and Reserve [Line Items]
Charges Incurred			19	68
Comprehensive Business Review
Restructuring Cost and Reserve [Line Items]
Charges Incurred				8
Termination Benefits | Maximize B2B Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Beginning Balance		27
Charges Incurred		(2)	35
Cash Payments		(6)	(8)
Ending Balance		19	27		19
Termination Benefits | Business Acceleration Program
Restructuring Cost and Reserve [Line Items]
Beginning Balance		2	6
Cash Payments		(2)	(4)
Ending Balance			2	6
Other Costs Including Contract Termination Costs | Maximize B2B Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Beginning Balance		10
Charges Incurred	$ 28	9	27
Cash Payments		(13)	(17)
Ending Balance		6	10		6
Other Costs Including Contract Termination Costs | Business Acceleration Program
Restructuring Cost and Reserve [Line Items]
Beginning Balance		1	5
Charges Incurred			20
Cash Payments		(1)	(24)
Ending Balance			1	5
Other Costs Including Contract Termination Costs | Comprehensive Business Review
Restructuring Cost and Reserve [Line Items]
Beginning Balance		2	3
Cash Payments		(1)	(1)
Ending Balance		1	$ 2	$ 3	1
Other Costs Including Contract Termination Costs | USR Parent, Inc. Proposals
Restructuring Cost and Reserve [Line Items]
Charges Incurred		5
Cash Payments		(5)
Other Costs Including Contract Termination Costs | Planned Separation of Consumer Business
Restructuring Cost and Reserve [Line Items]
Charges Incurred		32
Cash Payments		(30)
Ending Balance		$ 2			$ 2