RETIREMENT BENEFITS - Reconciliation of Defined Benefit Plan Asset Balances (Details) - USD ($) $ in Millions	Jan. 03, 2025	Dec. 29, 2023	Dec. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 8,599	$ 8,860	$ 7,653
Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5,347	5,495
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,220	2,668
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,031	2,640
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	96	187
Total investments measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,166	3,328
Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,048	1,294
Domestic equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,048	1,294
Domestic equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Domestic equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	968	1,138
International equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	968	1,138
International equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Real estate investment trusts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	186	214
Real estate investment trusts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	186	214
Real estate investment trusts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Real estate investment trusts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,685	1,457
Corporate bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,642	1,331
Corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	43	126
Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	698	485
Government securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Government securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	698	485
Government securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Securitized assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	79	164
Securitized assets | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Securitized assets | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	79	164
Securitized assets | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed income funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	132	137
Fixed income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	4
Fixed income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	128	133
Fixed income funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	498	545
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14	18
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	484	527
Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	53	61
Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	53	61
Equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,389	$ 1,529
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Fixed income funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 106	$ 3
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 219	$ 396
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Private equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,127	$ 1,019
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Real asset funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 323	$ 379
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2	$ 2
Investments measured at NAV:	Total investments measured at NAV	Total investments measured at NAV
Receivables, net
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 86	$ 37