Equity - Reclassifications Out of AOCI (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense		$ 39	$ 55	$ 149	$ 172
Net experience (gain) loss		0	0	2	2
Other income (expense), net		54	0	188	155
Total before tax		383	392	1,339	1,406
Tax expense (benefit)		(74)	(92)	(283)	(345)
Net income		312	305	1,062	1,061
Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Net income		(10)	1	(5)	11
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Total before tax		(14)	4	(6)	19
Tax expense (benefit)		3	(1)	1	(5)
Net income		(11)	3	(5)	14
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	[1]	(14)	4	(6)	19
Reclassification out of Accumulated Other Comprehensive Income | Amortization of postretirement and postemployment benefits
Derivative Instruments, Gain (Loss) [Line Items]
Total before tax		0	0	(2)	(2)
Tax expense (benefit)		0	0	1	1
Net income		0	0	(1)	(1)
Reclassification out of Accumulated Other Comprehensive Income | Amortization of postretirement and postemployment benefits | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Net experience (gain) loss	[2]	0	0	(2)	(2)
Corporate bonds | Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on available-for-sale securities
Derivative Instruments, Gain (Loss) [Line Items]
Total before tax		1	(2)	1	(2)
Tax expense (benefit)		0	0	0	0
Net income		1	(2)	1	(2)
Corporate bonds | Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on available-for-sale securities | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Other income (expense), net	[1]	$ 1	$ (2)	$ 1	$ (2)

[1] See Derivative instruments and fair value measurements note.

[2] See Employee benefits note.