Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - Fair value - USD ($) $ in Millions	Jul. 02, 2021	Jan. 01, 2021
Assets
Deferred compensation plan assets	$ 106	$ 98
Derivatives (foreign currency forward contracts)	18	24
Liabilities
Deferred compensation plan liabilities	146	120
Derivatives (foreign currency forward contracts)	3	4
Equity securities and mutual funds
Liabilities
Deferred compensation plan liabilities	5	4
Equity and fixed-income securities
Assets
Deferred compensation plan assets	73	67
Level 1
Assets
Deferred compensation plan assets	73	67
Derivatives (foreign currency forward contracts)	0	0
Liabilities
Deferred compensation plan liabilities	5	4
Derivatives (foreign currency forward contracts)	0	0
Level 1 | Equity securities and mutual funds
Liabilities
Deferred compensation plan liabilities	5	4
Level 1 | Equity and fixed-income securities
Assets
Deferred compensation plan assets	73	67
Level 2
Assets
Deferred compensation plan assets	0	0
Derivatives (foreign currency forward contracts)	18	24
Liabilities
Deferred compensation plan liabilities	0	0
Derivatives (foreign currency forward contracts)	3	4
Level 2 | Equity securities and mutual funds
Liabilities
Deferred compensation plan liabilities	0	0
Level 2 | Equity and fixed-income securities
Assets
Deferred compensation plan assets	0	0
Investments measured at NAV | Common/collective trusts and guaranteed investment contracts
Liabilities
Deferred compensation plan liabilities	141	116
Investments measured at NAV | Corporate-owned life insurance
Assets
Deferred compensation plan assets	$ 33	$ 31