Equity (Impact of Reclassifications from Accumulated Other Comprehensive Income on Earnings (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 03, 2021	Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from AOCI, Interest income and other, net		$ 90.1	$ 39.7	$ 96.5
Amounts Reclassified from AOCI, Interest expense		(469.8)	(437.0)	(331.0)
Amounts Reclassified from AOCI, Tax (expense)/benefit		(1,156.6)	(239.7)	(871.6)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified, from AOCI, Total before tax		(41.8)	20.1	(1.3)
Amounts Reclassified from AOCI, Tax (expense)/benefit		5.0	(5.2)	(1.6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		36.8	(14.9)	2.9
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		1.5	4.0	(0.6)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from AOCI, Interest income and other, net		1.8	4.9	0.9
Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		(0.2)	1.1	(4.0)
Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified, from AOCI, Total before tax		(1.9)	(1.9)	3.9
Accumulated Net Investment Hedge Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		10.0	9.8	0.0
Accumulated Net Investment Hedge Gain (Loss) Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from AOCI, Interest expense		(13.4)	(13.3)	0.0
Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		(48.1)	0.0	1.7
Thailand Retail Operations [Member] | Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Deconsolidation, Gain (Loss), Amount		0.0	0.0	1.7
Korea JV
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Deconsolidation, Gain (Loss), Amount	$ 864.5
Korea JV | Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Deconsolidation, Gain (Loss), Amount		$ (58.9)	$ 0.0	$ 0.0