RETIREMENT BENEFITS - Reconciliation of Defined Benefit Plan Asset Balances (Details) - USD ($) $ in Millions	Jan. 02, 2026	Jan. 03, 2025	Dec. 29, 2023
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 7,526	$ 8,599	$ 8,860
Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,815	5,347
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,014	2,220
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,693	3,031
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	108	96
Total investments measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,682	3,166
Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	852	1,048
Domestic equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	852	1,048
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	979	968
International equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	979	968
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	167	186
Real estate investment trusts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	167	186
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	1,574	1,685
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	1,522	1,642
Corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52	43
Government securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	861	698
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	861	698
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	27	79
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	27	79
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	97	132
Fixed income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	4
Fixed income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	92	128
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	202	498
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	14
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	191	484
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	56	53
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	56	53
Equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,171	$ 1,389
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	$ 142	$ 106
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	$ 151	$ 219
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	$ 894	$ 1,127
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	$ 322	$ 323
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	$ 29	$ 86