Condensed Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings/(Deficit) [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]
Balance, Amount at Sep. 29, 2019	$ (6,231.0)	$ 1.2	$ 41.1	$ (5,771.2)	$ (503.3)	$ (6,232.2)	$ 1.2
Common Stock, Shares, Outstanding, Beginning Balance at Sep. 29, 2019		1,184.6
Cumulative effect of adoption of new accounting guidance	17.3	$ 0.0	0.0	12.5	4.8	17.3	0.0
Net earnings/(loss)	1,210.1	0.0	0.0	1,214.1	0.0	1,214.1	(4.0)
Other comprehensive income/(loss)	(23.3)	0.0	0.0	0.0	(23.3)	(23.3)	0.0
Stock-based compensation expense	148.4	$ 0.0	148.4	0.0	0.0	148.4	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		3.6
Exercise of stock options/vesting of RSUs	(40.5)	$ 0.0	(40.5)	0.0	0.0	(40.5)	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.2
Sale of common stock	18.5	$ 0.0	18.5	0.0	0.0	18.5	0.0
Stock Repurchased and Retired During Period, Shares		(20.3)
Stock Repurchased and Retired During Period, Value	(1,675.0)	$ 0.0	(126.4)	(1,548.6)	0.0	(1,675.0)	0.0
Dividends, Cash	$ (957.4)	$ 0.0	0.0	(957.4)	0.0	(957.4)	0.0
Common Stock, Dividends, Per Share, Declared	$ 0.82
Common Stock, Shares, Outstanding at Mar. 29, 2020		1,168.1
Balance, Amount at Mar. 29, 2020	$ (7,532.9)	$ 1.2	41.1	(7,050.6)	(521.8)	(7,530.1)	(2.8)
Balance, Amount at Dec. 29, 2019	(6,759.1)	$ 1.2	41.1	(6,414.8)	(387.4)	(6,759.9)	0.8
Common Stock, Shares, Outstanding, Beginning Balance at Dec. 29, 2019		1,174.5
Net earnings/(loss)	324.8	$ 0.0	0.0	328.4	0.0	328.4	(3.6)
Other comprehensive income/(loss)	(134.4)	0.0	0.0	0.0	(134.4)	(134.4)	0.0
Stock-based compensation expense	57.1	$ 0.0	57.1	0.0	0.0	57.1	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		0.8
Exercise of stock options/vesting of RSUs	13.6	$ 0.0	13.6	0.0	0.0	13.6	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.1
Sale of common stock	9.6	$ 0.0	9.6	0.0	0.0	9.6	0.0
Stock Repurchased and Retired During Period, Shares		(7.3)
Stock Repurchased and Retired During Period, Value	(567.1)	$ 0.0	(80.3)	(486.8)	0.0	(567.1)	0.0
Dividends, Cash	$ (477.4)	$ 0.0	0.0	(477.4)	0.0	(477.4)	0.0
Common Stock, Dividends, Per Share, Declared	$ 0.41
Common Stock, Shares, Outstanding at Mar. 29, 2020		1,168.1
Balance, Amount at Mar. 29, 2020	$ (7,532.9)	$ 1.2	41.1	(7,050.6)	(521.8)	(7,530.1)	(2.8)
Balance, Amount at Sep. 27, 2020	(7,799.4)	$ 1.2	373.9	(7,815.6)	(364.6)	(7,805.1)	5.7
Common Stock, Shares, Outstanding, Beginning Balance at Sep. 27, 2020		1,173.3
Cumulative effect of adoption of new accounting guidance	(2.2)	$ 0.0	0.0	(2.2)	0.0	(2.2)	0.0
Net earnings/(loss)	1,281.6	0.0	0.0	1,281.6	0.0	1,281.6	0.0
Other comprehensive income/(loss)	238.3	0.0	0.0	0.0	238.3	238.3	0.0
Stock-based compensation expense	177.2	$ 0.0	177.2	0.0	0.0	177.2	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		4.4
Exercise of stock options/vesting of RSUs	24.0	$ 0.0	24.0	0.0	0.0	24.0	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.2
Sale of common stock	20.3	$ 0.0	20.3	0.0	0.0	20.3	0.0
Dividends, Cash	$ (1,588.1)	$ 0.0	0.0	(1,588.1)	0.0	(1,588.1)	0.0
Common Stock, Dividends, Per Share, Declared	$ 1.35
Common Stock, Shares, Outstanding at Mar. 28, 2021		1,177.9
Balance, Amount at Mar. 28, 2021	$ (7,648.3)	$ 1.2	595.4	(8,124.3)	(126.3)	(7,654.0)	5.7
Balance, Amount at Dec. 27, 2020	(7,904.0)	$ 1.2	488.6	(8,253.6)	(145.9)	(7,909.7)	5.7
Common Stock, Shares, Outstanding, Beginning Balance at Dec. 27, 2020		1,177.2
Net earnings/(loss)	659.4	$ 0.0	0.0	659.4	0.0	659.4	0.0
Other comprehensive income/(loss)	19.6	0.0	0.0	0.0	19.6	19.6	0.0
Stock-based compensation expense	76.7	$ 0.0	76.7	0.0	0.0	76.7	0.0
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		0.6
Exercise of stock options/vesting of RSUs	20.0	$ 0.0	20.0	0.0	0.0	20.0	0.0
Stock Issued During Period, Shares, Employee Stock Purchase Plans		0.1
Sale of common stock	10.1	$ 0.0	10.1	0.0	0.0	10.1	0.0
Dividends, Cash	$ (530.1)	$ 0.0	0.0	(530.1)	0.0	(530.1)	0.0
Common Stock, Dividends, Per Share, Declared	$ 0.45
Common Stock, Shares, Outstanding at Mar. 28, 2021		1,177.9
Balance, Amount at Mar. 28, 2021	$ (7,648.3)	$ 1.2	$ 595.4	$ (8,124.3)	$ (126.3)	$ (7,654.0)	$ 5.7