Stock Compensation (Tables)

12 Months Ended

Dec. 28, 2019

Share-based Payment Arrangement [Abstract]

Schedule Of Compensation Expense For Equity Programs And Related Tax Benefits Text Block [Table Text Block]

(millions)	2019		2018		2017
Pre-tax compensation expense	$	61	$	64	$	71
Related income tax benefit	$	16	$	16	$	26

Schedule of Cash and Tax Benefits Received Upon Exercise of Stock Options and Similar Instruments [Table Text Block]

(millions)	2019			2018		2017
Total cash received from option exercises and similar instruments	$	64		$	167	$	97
Tax windfall (shortfall) classified as cash flow from operating activities	$	(2	)	$	11	$	4

Schedule of Stock Option Valuation Model Assumptions for Grants [Table Text Block]

Stock option valuation model assumptions for grants within the year ended:	2019			2018			2017
Weighted-average expected volatility	18.00		%	18.00		%	18.00		%
Weighted-average expected term (years)	6.60			6.60			6.60
Weighted-average risk-free interest rate	2.59		%	2.82		%	2.26		%
Dividend yield	3.90		%	3.00		%	2.80		%
Weighted-average fair value of options granted	$	6.78		$	10.00		$	10.14

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

Employee and director stock options	Shares (millions)		Weighted- average exercise price		Weighted- average remaining contractual term (yrs.)	Aggregate intrinsic value (millions)
Outstanding, beginning of year	14		$	66
Granted	3		57
Exercised	(1	)	56
Forfeitures and expirations	(2	)	67
Outstanding, end of year	14		$	65	4.9	$	55
Exercisable, end of year	10		$	65	6.1	$	86

Additionally, option activity for the comparable prior year periods is presented in the following table:

(millions, except per share data)	2018			2017
Outstanding, beginning of year	14			15
Granted	3			2
Exercised	(2		)	(2		)
Forfeitures and expirations	(1		)	(1		)
Outstanding, end of year	14			14
Exercisable, end of year	10			10
Weighted-average exercise price:
Outstanding, beginning of year	$	64		$	62
Granted	70			73
Exercised	58			57
Forfeitures and expirations	71			70
Outstanding, end of year	$	66		$	64
Exercisable, end of year	$	63		$	60

Summary of Restricted Stock Summary [Table Text Block]

Employee restricted stock and restricted stock units	Shares (thousands)		Weighted- average grant-date fair value
Non-vested, beginning of year	1,708		$	65
Granted	287		55
Vested	(469	)	68
Forfeited	(340	)	62
Non-vested, end of year	1,186		$	61

Additionally, restricted stock unit activity for 2018 and 2017 is presented in the following table:

Employee restricted stock and restricted stock units	2018			2017
Shares (in thousands):
Non-vested, beginning of year	1,673			1,166
Granted	772			776
Vested	(507		)	(109		)
Forfeited	(230		)	(160		)
Non-vested, end of year	1,708			1,673
Weighted-average exercise price:
Non-vested, beginning of year	$	65		$	63
Granted	63			65
Vested	59			58
Forfeited	64			65
Non-vested, end of year	$	65		$	65