Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income/(Loss) [Member]	Parent [Member]	Noncontrolling Interest [Member]
Common Stock, Shares, Outstanding		1,309.1
Balance, Amount at Sep. 30, 2018	$ 1,175.8	$ 1.3	$ 41.1	$ 1,457.4	$ (330.3)	$ 1,169.5	$ 6.3
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	3,594.6	0.0	0.0	3,599.2	0.0	3,599.2
Other comprehensive income/(loss)	(173.0)	0.0	0.0	0.0	(173.0)	(173.0)	0.0
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	311.3	0.0	311.3	0.0	0.0	311.3	0.0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	264.9	$ 0.0	264.9	0.0	0.0	264.9	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		14.7
Stock Issued During Period, Value, Employee Stock Purchase Plan	33.4	$ 0.0	33.4	0.0	0.0	33.4	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.4
Stock Repurchased and Retired During Period, Value	$ (10,131.5)	$ (0.1)	(609.6)	(9,521.8)	0.0	(10,131.5)	0.0
Stock Repurchased and Retired During Period, Shares		(139.6)
Common Stock, Dividends, Per Share, Declared	$ 1.49
Dividends, Cash	$ (1,801.6)	$ 0.0	0.0	(1,801.6)	0.0	(1,801.6)	0.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(0.5)						(0.5)
Balance, Amount at Sep. 29, 2019	(6,231.0)	1.2	41.1	(5,771.2)	(503.3)	(6,232.2)	1.2
Cumulative Effect of New Accounting Pronouncement in Period of Adoption	495.6	$ 0.0	0.0	495.6	0.0	495.6	0.0
Common Stock, Shares, Outstanding		1,184.6
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	924.7	$ 0.0	0.0	928.3	0.0	928.3
Other comprehensive income/(loss)	133.9	0.0	0.0	0.0	133.9	133.9	0.0
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	252.1	0.0	252.1	0.0	0.0	252.1	0.0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	169.9	$ 0.0	169.9	0.0	0.0	169.9	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		8.5
Stock Issued During Period, Value, Employee Stock Purchase Plan	37.2	$ 0.0	37.2	0.0	0.0	37.2	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.5
Stock Repurchased and Retired During Period, Value	$ (1,675.0)	$ 0.0	(126.4)	(1,548.6)	0.0	(1,675.0)	0.0
Stock Repurchased and Retired During Period, Shares		(20.3)
Common Stock, Dividends, Per Share, Declared	$ 1.23
Dividends, Cash	$ (1,436.8)	$ 0.0	0.0	(1,436.6)	0.0	(1,436.6)	(0.2)
Noncontrolling Interest, Increase from Sale of Parent Equity Interest	8.3						8.3
Balance, Amount at Sep. 27, 2020	(7,799.4)	1.2	373.9	(7,815.6)	(364.6)	(7,805.1)	5.7
Cumulative Effect of New Accounting Pronouncement in Period of Adoption	$ 17.3	$ 0.0	0.0	12.5	4.8	17.3	0.0
Common Stock, Shares, Outstanding	1,173.3	1,173.3
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 4,200.3	$ 0.0	0.0	4,199.3	0.0	4,199.3	1.0
Other comprehensive income/(loss)	511.8	0.0	0.0	0.0	511.8	511.8	0.0
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	322.8	0.0	322.8	0.0	0.0	322.8	0.0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	107.0	$ 0.0	107.0	0.0	0.0	107.0	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		6.3
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 42.4	$ 0.0	42.4	0.0	0.0	42.4	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans	0.5	0.4
Common Stock, Dividends, Per Share, Declared	$ 2.29
Dividends, Cash	$ (2,697.2)	$ 0.0	0.0	(2,697.2)	0.0	(2,697.2)	0.0
Balance, Amount at Oct. 03, 2021	(5,314.5)	1.2	846.1	(6,315.7)	147.2	(5,321.2)	6.7
Cumulative Effect of New Accounting Pronouncement in Period of Adoption	$ (2.2)	$ 0.0	$ 0.0	$ (2.2)	$ 0.0	$ (2.2)	$ 0.0
Common Stock, Shares, Outstanding	1,180.0	1,180.0