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]	Shareholders' Equity [Member]	Noncontrolling Interest [Member]
Common stock, Shares at Oct. 02, 2016		1,460.5
Balance, Amount at Oct. 02, 2016	$ 5,890.7	$ 1.5	$ 41.1	$ 5,949.8	$ (108.4)	$ 5,884.0	$ 6.7
Net earnings	2,884.9	0.0	0.0	2,884.7	0.0	2,884.7
Other comprehensive income/(loss)	(47.2)	0.0	0.0	0.0	(47.2)	(47.2)	0.0
Stock-based compensation expense	177.9	$ 0.0	177.9	0.0	0.0	177.9	0.0
Exercise of stock options/vesting of RSUs, including tax benefit, Shares		8.1
Exercise of stock options/vesting of RSUs, including tax benefit, Amount	117.0	$ 0.0	117.0	0.0	0.0	117.0	0.0
Sale of common stock, including tax benefit, Shares		0.5
Sale of common stock, including tax benefit, Amount	28.7	$ 0.0	28.7	0.0	0.0	28.7	0.0
Repurchase of common stock, Shares		(37.5)
Repurchase of common stock, Amount	(2,079.1)	$ (0.1)	(323.6)	(1,755.4)	0.0	(2,079.1)	0.0
Cash dividends declared	(1,515.9)	$ 0.0	0.0	(1,515.9)	0.0	(1,515.9)	0.0
Common stock, Shares at Oct. 01, 2017		1,431.6
Balance, Amount at Oct. 01, 2017	5,457.0	$ 1.4	41.1	5,563.2	(155.6)	5,450.1	6.9
Net earnings	4,518.0	0.0	0.0	4,518.3	0.0	4,518.3
Other comprehensive income/(loss)	(174.7)	0.0	0.0	0.0	(174.7)	(174.7)	0.0
Stock-based compensation expense	253.8	$ 0.0	253.8	0.0	0.0	253.8	0.0
Exercise of stock options/vesting of RSUs, including tax benefit, Shares		8.4
Exercise of stock options/vesting of RSUs, including tax benefit, Amount	59.4	$ 0.0	59.4	0.0	0.0	59.4	0.0
Sale of common stock, including tax benefit, Shares		0.6
Sale of common stock, including tax benefit, Amount	31.8	$ 0.0	31.8	0.0	0.0	31.8	0.0
Repurchase of common stock, Shares		(131.5)
Repurchase of common stock, Amount	(7,208.7)	$ (0.1)	(345.0)	(6,863.6)	0.0	(7,208.7)	0.0
Cash dividends declared	(1,760.5)	$ 0.0	0.0	(1,760.5)	0.0	(1,760.5)	0.0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ (0.3)						0.3
Common stock, Shares at Sep. 30, 2018	1,309.1	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 earnings	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
Stock-based compensation expense	311.3	$ 0.0	311.3	0.0	0.0	311.3	0.0
Exercise of stock options/vesting of RSUs, including tax benefit, Shares		14.7
Exercise of stock options/vesting of RSUs, including tax benefit, Amount	$ 264.9	$ 0.0	264.9	0.0	0.0	264.9	0.0
Sale of common stock, including tax benefit, Shares	0.4	0.4
Sale of common stock, including tax benefit, Amount	$ 33.4	$ 0.0	33.4	0.0	0.0	33.4	0.0
Repurchase of common stock, Shares		(139.6)
Repurchase of common stock, Amount	(10,131.5)	$ (0.1)	(609.6)	(9,521.8)	0.0	(10,131.5)	0.0
Cash dividends declared	(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
Common stock, Shares at Sep. 29, 2019	1,184.6	1,184.6
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 Principle in Period of Adoption	$ 495.6	$ 0.0	$ 0.0	$ 495.6	$ 0.0	$ 495.6	$ 0.0