Retirement Plans Fair Value of Defined Benefit Plans' Assets by Asset Fair Value Hierarchy Level (Details) - USD ($) $ in Millions	Dec. 30, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 760	$ 753
Domestic Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18	32
International equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	2
International Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	22
Domestic Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	116	216
International Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16	27
U.S. Governmental Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	7
Securities at Fair Values, Excluding NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	167	309
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	3
Level 1 | Domestic Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18	32
Level 1 | International equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	2
Level 1 | International Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	22
Level 1 | Domestic Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 1 | International Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 1 | U.S. Governmental Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Level 1 | Securities at Fair Values, Excluding NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	30	56
Level 1 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Level 2 | Domestic Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 | International equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 | International Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 | Domestic Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	116	216
Level 2 | International Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16	27
Level 2 | U.S. Governmental Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	7
Level 2 | Securities at Fair Values, Excluding NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	137	253
Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	3
Level 3 | Domestic Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | International equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | International Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | Domestic Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | International Corporate Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | U.S. Governmental Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | Securities at Fair Values, Excluding NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 | Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Fair Value Hierarchy | Common collective trust funds, Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	286	24
Fair Value Hierarchy | Common collective trust funds, Domestic Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72	147
Fair Value Hierarchy | Common collective trust funds, International Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20	41
Fair Value Hierarchy | Common collective trust funds, Treasury STRIPS
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	67	164
Fair Value Hierarchy | Common collective trust funds, U.S. Governmental Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	148	68
Fair Value Hierarchy | Securities Valued at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 593	$ 444