Employee Equity Incentive Plans (Tables)

12 Months Ended

Dec. 25, 2021

Employee Benefit and Share-based Payment Arrangement, Noncash Expense [Abstract]

Restricted Stock Units Estimated Values And Weighted Average Assumptions [Table Text Block]

Restricted Stock Units

Weighted average assumptions used in estimating grant values were as follows:

	Dec 25, 2021			Dec 26, 2020			Dec 28, 2019
Estimated values	$	50.82		$	54.82		$	48.06
Risk-free interest rate	0.2		%	0.4		%	2.3		%
Dividend yield	2.6		%	2.3		%	2.5		%
Volatility	37		%	30		%	25		%

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Summary of activities:

	Number of Stock Units (In Millions)	Weighted Average Grant-Date Fair Value
December 26, 2020	82.7	$	50.14
Granted	76.8	$	50.82
Vested	(30.2)	$	47.64
Forfeited	(11.3)	$	49.48
December 25, 2021	118.0	$	51.29
Expected to vest	105.9	$	51.47