Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Numerator for basic and diluted earnings per share:
Net income attributable to Keurig	$ 155,479	$ 162,084	$ 290,058	$ 300,311
Denominator:
Basic weighted-average shares outstanding	158,969,696	153,945,441	160,575,947	151,552,422
Effect of dilutive securities (in shares)	1,663,741	3,517,655	1,786,627	2,973,327
Diluted weighted-average shares outstanding	160,633,437	157,463,096	162,362,574	154,525,749
Basic and diluted net income per common share
Basic net income per common share (in dollars per share)	$ 0.98us-gaap_EarningsPerShareBasic	$ 1.05us-gaap_EarningsPerShareBasic	$ 1.81us-gaap_EarningsPerShareBasic	$ 1.98us-gaap_EarningsPerShareBasic
Diluted net income per common share (in dollars per share)	$ 0.97us-gaap_EarningsPerShareDiluted	$ 1.03us-gaap_EarningsPerShareDiluted	$ 1.79us-gaap_EarningsPerShareDiluted	$ 1.94us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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