Employee Stock and Benefit Plans (Tables)

12 Months Ended

Sep. 27, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Expense Recognized in the Consolidated Financial Statements

Stock-based compensation expense recognized in the consolidated financial statements (in millions):

Fiscal Year Ended	Sep 27, 2020		Sep 29, 2019		Sep 30, 2018
Options	$	7.5	$	20.0	$	28.0
RSUs	241.0		288.0		222.3
Total stock-based compensation expense recognized in the consolidated statements of earnings	$	248.5	$	308.0	$	250.3
Total related tax benefit	$	47.8	$	59.3	$	62.4
Total capitalized stock-based compensation included in net property, plant and equipment on the consolidated balance sheets	$	3.6	$	3.4	$	3.5

Stock Options Granted During the Period, Valuation Assumptions

The fair value of stock option awards was estimated at the grant date with the following weighted average assumptions for fiscal 2020, 2019 and 2018:

	Stock Options Granted During the Period
Fiscal Year Ended	2020			2019			2018
Expected term (in years)	7.8			4.1			3.6
Expected stock price volatility	27.3		%	21.6		%	20.5		%
Risk-free interest rate	1.2		%	2.9		%	2.1		%
Expected dividend yield	2.9		%	2.1		%	2.2		%
Weighted average grant price	$	56.33		$	67.33		$	56.56
Estimated fair value per option granted	$	11.30		$	11.06		$	7.32

Stock Option Transactions

Stock option transactions for the year ended September 27, 2020 (in millions, except per share and contractual life amounts):

	Shares Subject to Options	Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Outstanding, September 29, 2019	15.2	$	49.45	5.0	$	592
Granted	0.1	56.33
Exercised	(6.0)	43.92
Expired/forfeited	(0.1)	52.20
Outstanding, September 27, 2020	9.2	53.06		5.4	287
Exercisable, September 27, 2020	6.8	51.16		4.8	226
Vested and expected to vest, September 27, 2020	9.1	53.03		5.4	286

RSU Transactions

RSU transactions for the year ended September 27, 2020 (in millions, except per share and contractual life amounts):

	Number of Shares	Weighted Average Grant Date Fair Value per Share		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
Nonvested, September 29, 2019	8.9	$	62.56	1.1	$	788
Granted	4.0	81.96
Vested	(3.5)	59.97
Forfeited/canceled	(1.1)	71.88
Nonvested, September 27, 2020	8.3	74.23		1.1	699