Long-Term Debt and Other Financing - Long-Term Borrowings (Details) - USD ($) $ in Millions	Sep. 28, 2025	Dec. 29, 2024	Sep. 29, 2024
Debt Instrument [Line Items]
Carrying Cost	$ 3,336.8	$ 3,401.8	$ 3,984.9
Less: Deferred debt expenses	18.0	21.0	22.3
Less: Current portion	0.0	0.0	500.0
Long-term debt, carrying cost	3,318.8	3,380.8	3,462.6
Fair Value	3,317.2	3,290.5	3,976.9
Long-term debt, fair value	$ 3,317.2	3,290.5	3,976.9
3.90% Notes Due 2029
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	3.90%
Carrying Cost	$ 900.0	900.0	900.0
Fair Value	$ 875.3	845.6	869.5
3.55% Notes Due 2026
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	3.55%
Carrying Cost	$ 551.9	591.9	675.0
Fair Value	$ 547.0	578.0	662.4
6.05% Notes Due 2034
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	6.05%
Carrying Cost	$ 500.0	500.0	500.0
Fair Value	$ 522.6	502.2	526.5
6.35% Notes Due 2040
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	6.35%
Carrying Cost	$ 500.0	500.0	500.0
Fair Value	$ 521.9	507.5	536.5
3.50% Notes Due 2027
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	3.50%
Carrying Cost	$ 475.0	500.0	500.0
Fair Value	$ 468.2	481.5	486.6
5.10% Notes Due 2044
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	5.10%
Carrying Cost	$ 300.0	300.0	300.0
Fair Value	$ 265.5	261.3	279.7
6.60% Debentures Due 2028
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	6.60%
Carrying Cost	$ 109.9	109.9	109.9
Fair Value	$ 116.7	114.4	117.5
3.00% Notes Due 2024
Debt Instrument [Line Items]
Debt stated interest rate (as a percent)	3.00%
Carrying Cost	$ 0.0	0.0	500.0
Fair Value	$ 0.0	$ 0.0	$ 498.2