Comprehensive Income/(Loss) Comprehensive Income/(Loss) (Summary of Allocation of 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 (loss)/income attributable to The Kraft Heinz Company	$ (164)	$ 127	$ 112	$ 322
Less: Net income attributable to noncontrolling interest	(4)	(8)	(7)	(11)
Net (loss)/income	(160)	135	119	333
Foreign currency translation adjustments	361	181	(433)	295
Net deferred gains/(losses) on net investment hedges	(206)	(44)	226	(160)
Net pension and post-retirement benefit (losses)/gains	(18)	(28)	(19)	(28)
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	8	(1)	7	(2)
Net deferred (losses)/gains on cash flow hedges from periodic revaluations	(10)	(100)	(77)	(159)
Net deferred losses/(gains) on cash flow hedges reclassified to earnings	137	(1)	138	(4)
Comprehensive (loss)/income attributable to H.J. Heinz Holding Corporation	107	139	(33)	261
Comprehensive (income)/loss attributable to the noncontrolling interest	(5)	(3)	6	(14)
Total comprehensive income	112	142	(39)	275
The Kraft Heinz Company
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (loss)/income attributable to The Kraft Heinz Company	(164)	127	112	322
Foreign currency translation adjustments	360	186	(420)	292
Net deferred gains/(losses) on net investment hedges	(206)	(44)	226	(160)
Net pension and post-retirement benefit (losses)/gains	(18)	(28)	(19)	(28)
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	8	(1)	7	(2)
Net deferred (losses)/gains on cash flow hedges from periodic revaluations	(10)	(100)	(77)	(159)
Net deferred losses/(gains) on cash flow hedges reclassified to earnings	137	(1)	138	(4)
Comprehensive (loss)/income attributable to H.J. Heinz Holding Corporation	107	139	(33)	261
Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Less: Net income attributable to noncontrolling interest	4	8	7	11
Foreign currency translation adjustments	1	(5)	(13)	3
Net deferred gains/(losses) on net investment hedges	0	0	0	0
Net pension and post-retirement benefit (losses)/gains	0	0	0	0
Reclassification of net pension and post-retirement benefit (gains)/losses to net income	0	0	0	0
Net deferred (losses)/gains on cash flow hedges from periodic revaluations	0	0	0	0
Net deferred losses/(gains) on cash flow hedges reclassified to earnings	0	0	0	0
Comprehensive (income)/loss attributable to the noncontrolling interest	$ 5	$ 3	$ (6)	$ 14