Comprehensive Income/(Loss) (Tax (Expense)/Benefit on Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net deferred gains/(losses) on net investment hedges	$ (124)	$ 27	$ 195	$ 99
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax		7		7
Net pension and post-retirement benefit gains/(losses)	5		6
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	2	1	3	1
Net deferred gains/(losses) on cash flow hedges from periodic revaluations	2	48	(43)	79
Net deferred (gains)/losses on cash flow hedges reclassified to earnings	86	2	84	5
The Kraft Heinz Company
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net deferred gains/(losses) on net investment hedges	(124)	27	195	99
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax		7		7
Net pension and post-retirement benefit gains/(losses)	5		6
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	2	1	3	1
Net deferred gains/(losses) on cash flow hedges from periodic revaluations	2	48	(43)	79
Net deferred (gains)/losses on cash flow hedges reclassified to earnings	86	2	84	5
Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net deferred gains/(losses) on net investment hedges	0	0	0	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax		0		0
Net pension and post-retirement benefit gains/(losses)	0		0
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	0	0	0	0
Net deferred gains/(losses) on cash flow hedges from periodic revaluations	0	0	0	0
Net deferred (gains)/losses on cash flow hedges reclassified to earnings	$ 0	$ 0	$ 0	$ 0