Equity (Impact of Reclassifications from Accumulated Other Comprehensive Income on Earnings Related to Cash Flow Hedges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					6 Months Ended		12 Months Ended
	Mar. 30, 2014	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Mar. 30, 2014	Mar. 31, 2013	Sep. 29, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from AOCI, Interest expense	$ (16.7)	$ (9.1)	$ (6.3)	$ (6.1)	$ (6.6)	$ (31.3)	$ (12.7)	$ (28.1)	$ (32.7)
Amounts Reclassified from AOCI, Revenue	3,873.8	3,788.8	3,735.3	3,549.6	3,793.2	8,113.4	7,342.7	14,866.8	13,276.8
Amounts Reclassified from AOCI, Cost of sales including occupancy costs	(1,629.2)	(1,633.7)	(1,597.6)	(1,530.4)	(1,620.7)	(3,424.2)	(3,151.1)	(6,382.3)	(5,813.3)
Amounts Reclassified from AOCI, Tax (expense)/benefit	(218.3)	820.1	(194.6)	(198.1)	(188.7)	(496.4)	(386.8)	238.7	(674.4)
Amounts Reclassified from AOCI, net of tax	(1.2)					6.3
Accumulated Net Gain (Loss) from Designated or Qualifying 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	2.5					(5.1)
Amounts Reclassified from AOCI, Tax (expense)/benefit	(1.1)					(1.0)
Amounts Reclassified from AOCI, net of tax	1.4					(6.1)
Interest Rate Contract [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying 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, Interest expense	1.3					2.5
Foreign Exchange Contract [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying 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, Revenue	1.3					2.3
Foreign Currency and Coffee Contracts [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying 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, Cost of sales including occupancy costs	$ (0.1)					$ (9.9)