Segment Reporting (Financial Information For Reportable Operating Segments And All Other Segments) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	24 Months Ended
Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2019	Apr. 01, 2018	Sep. 30, 2018
Segment Reporting Information [Line Items]
Segment Reporting, Factors Used to Identify Entity's Reportable Segments			Segment information is prepared on the same basis that our ceo, who is our chief operating decision maker, manages the segments, evaluates financial results and makes key operating decisions.
Revenues	$ 6,305.9	$ 6,031.8	$ 12,938.7	$ 12,105.5
Gain (Loss) on Disposition of Business	21.0	(4.9)	21.0	496.3
Depreciation and amortization expenses	356.2	331.6	689.6	590.4
Income from equity investees	62.3	52.7	130.1	142.1
Operating income/(loss)	857.7	772.5	1,873.4	1,888.6
Income Tax Expense (Benefit)	161.2	155.8	366.4	911.6
Operating Segments [Member] \| Americas Segment [Member]
Segment Reporting Information [Line Items]
Revenues	4,305.9	3,996.3	8,912.0	8,253.9
Depreciation and amortization expenses	170.7	160.4	336.4	318.4
Income from equity investees	0.0	0.0	0.0	0.0
Operating income/(loss)	899.0	801.3	1,910.8	1,779.0
Operating Segments [Member] \| China / Asia Pacific Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,289.1	1,186.4	2,516.5	2,030.0
Depreciation and amortization expenses	121.4	121.6	238.2	175.3
Income from equity investees	22.1	16.7	48.5	67.5
Operating income/(loss)	231.7	204.6	453.1	401.4
Operating Segments [Member] \| EMEA Segment [Member]
Segment Reporting Information [Line Items]
Revenues	227.5	251.0	493.8	519.0
Depreciation and amortization expenses	6.9	8.0	14.7	15.5
Income from equity investees	0.0	0.0	0.0	0.0
Operating income/(loss)	(2.8)	(10.9)	24.2	21.4
Operating Segments [Member] \| Channel Development [Member]
Segment Reporting Information [Line Items]
Revenues	446.6	562.6	951.1	1,190.6
Depreciation and amortization expenses	12.3	0.3	12.4	0.9
Income from equity investees	40.2	36.0	81.6	74.6
Operating income/(loss)	149.0	234.0	324.6	503.4
Operating Segments [Member] \| Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenues	36.8	35.5	65.3	112.0
Depreciation and amortization expenses	44.9	41.3	87.9	80.3
Income from equity investees	0.0	0.0	0.0	0.0
Operating income/(loss)	(419.2)	(456.5)	(839.3)	(816.6)
Contract Termination [Member] \| Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Business Exit Costs	20.5	100.9	29.0	117.5	$ 135.0
Beverage Member
Segment Reporting Information [Line Items]
Revenues	3,760.4	3,519.8	7,688.3	6,933.8
Food Member
Segment Reporting Information [Line Items]
Revenues	1,157.9	1,067.1	2,344.3	2,115.4
Other Products Member
Segment Reporting Information [Line Items]
Revenues	$ 1,387.6	$ 1,444.9	$ 2,906.1	$ 3,056.3
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	100.00%	100.00%	100.00%	100.00%
Sales Revenue, Net [Member] \| Beverage Member
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	60.00%	58.00%	60.00%	57.00%
Sales Revenue, Net [Member] \| Food Member
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	18.00%	18.00%	18.00%	17.00%
Sales Revenue, Net [Member] \| Other Products Member
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	22.00%	24.00%	22.00%	26.00%

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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