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. 02, 2022	Oct. 03, 2021	Sep. 27, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from AOCI, Interest income and other, net		$ 97.0	$ 90.1	$ 39.7
Amounts Reclassified from AOCI, Interest expense		(482.9)	(469.8)	(437.0)
Amounts Reclassified from AOCI, Tax (expense)/benefit		(948.5)	(1,156.6)	(239.7)
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		210.5	(41.8)	20.1
Amounts Reclassified from AOCI, Tax (expense)/benefit		(34.2)	5.0	(5.2)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		(176.3)	36.8	(14.9)
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		(0.2)	1.5	4.0
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		(0.4)	1.8	4.9
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		166.0	(0.2)	1.1
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		(196.6)	(1.9)	(1.9)
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		10.6	10.0	9.8
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		(14.3)	(13.4)	(13.3)
Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		(0.1)	(48.1)	0.0
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		$ 0.0	$ (58.9)	$ 0.0