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Stockholders' Equity (Tables)
12 Months Ended
Jan. 03, 2021
Equity [Abstract]  
Schedule of Restricted Stock Activity and Related Information, Restricted Stock
Restricted stock activity was as follows:
Restricted
Stock Units
(RSU)
Performance
Stock Units
(PSU)(1)
Weighted-Average Grant-
Date Fair Value per Share
Units in thousandsRSUPSU
Outstanding at December 31, 20172,085 542 $172.92 $166.15 
Awarded655 336 $322.04 $232.08 
Vested(731)(188)$170.50 $176.15 
Cancelled(169)(30)$172.30 $162.54 
Outstanding at December 30, 20181,840 660 $227.00 $196.99 
Awarded698 (41)$313.70 $254.52 
Vested(694)(283)$205.51 $133.11 
Cancelled(144)(65)$225.48 $181.79 
Outstanding at December 29, 20191,700 271 $271.49 $258.66 
Awarded878 (78)$329.83 $344.22 
Vested(655)(117)$239.19 $400.74 
Cancelled(202)(76)$273.13 $266.63 
Outstanding at January 3, 20211,721  $313.35  
______________________________________
(1)The number of units reflect the estimated number of shares to be issued at the end of the performance period. Awarded units are presented net of performance adjustments.
Schedule of Restricted Stock Activity and Related Information, Performance Units
Restricted stock activity was as follows:
Restricted
Stock Units
(RSU)
Performance
Stock Units
(PSU)(1)
Weighted-Average Grant-
Date Fair Value per Share
Units in thousandsRSUPSU
Outstanding at December 31, 20172,085 542 $172.92 $166.15 
Awarded655 336 $322.04 $232.08 
Vested(731)(188)$170.50 $176.15 
Cancelled(169)(30)$172.30 $162.54 
Outstanding at December 30, 20181,840 660 $227.00 $196.99 
Awarded698 (41)$313.70 $254.52 
Vested(694)(283)$205.51 $133.11 
Cancelled(144)(65)$225.48 $181.79 
Outstanding at December 29, 20191,700 271 $271.49 $258.66 
Awarded878 (78)$329.83 $344.22 
Vested(655)(117)$239.19 $400.74 
Cancelled(202)(76)$273.13 $266.63 
Outstanding at January 3, 20211,721  $313.35  
______________________________________
(1)The number of units reflect the estimated number of shares to be issued at the end of the performance period. Awarded units are presented net of performance adjustments.
Schedule of Pre-tax Intrinsic Values of Vested Restricted Stock
Pre-tax intrinsic values and fair value of vested restricted stock was as follows:
In millions202020192018
Pre-tax intrinsic value of outstanding restricted stock:
RSU$637 $565 $549 
PSU$ $90 $197 
Fair value of restricted stock vested:
RSU$206 $210 $125 
PSU$47 $38 $33 
Schedule of Total Fair Value of Vested Restricted Stock
Pre-tax intrinsic values and fair value of vested restricted stock was as follows:
In millions202020192018
Pre-tax intrinsic value of outstanding restricted stock:
RSU$637 $565 $549 
PSU$ $90 $197 
Fair value of restricted stock vested:
RSU$206 $210 $125 
PSU$47 $38 $33 
Schedule of Stock Option Activity Under all Stock Option Plans
Stock option activity was as follows:
Options
(in thousands)
Weighted-
Average
Exercise Price
Outstanding at December 31, 2017322 $46.93 
Exercised(130)$35.68 
Outstanding at December 30, 2018192 $54.52 
Exercised(134)$53.61 
Outstanding at December 29, 201958 $56.65 
Exercised(48)$56.16 
Outstanding and exercisable at January 3, 202110 $59.11 
Schedule of Share-based Compensation Expense for all Stock Awards
Share-based compensation expense reported in our consolidated statements of income was as follows:
In millions202020192018
Cost of product revenue$21 $19 $16 
Cost of service and other revenue4 
Research and development74 66 60 
Selling, general and administrative95 105 114 
Share-based compensation expense, before taxes194 194 193 
Related income tax benefits(43)(41)(39)
Share-based compensation expense, net of taxes$151 $153 $154 
Schedule of Assumptions used to Estimate the Weighted-Average Fair Value Per Share for Stock Purchase under the Employee Stock Purchase Plan
The assumptions used for the specified reporting periods and the resulting estimates of weighted-average fair value per share for stock purchased under the ESPP were as follows:
202020192018
Risk-free interest rate
0.11% - 2.04%
 1.88% - 2.56%
1.22% - 2.45%
Expected volatility
30% - 45%
 30% - 38%
29% - 39%
Expected term
0.5 - 1.0 year
 0.5 - 1.0 year
0.5 - 1.0 year
Expected dividends
0%
0%
0%
Weighted-average grant-date fair value per share$75.57 $75.47 $61.59