Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		May. 01, 2016	May. 03, 2015	May. 01, 2016	May. 03, 2015
Statement of Comprehensive Income [Abstract]
Net earnings		$ 185	$ 179	$ 644	$ 649
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract]
Foreign currency translation adjustments, before tax		101	9	58	(229)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax [Abstract]
Unrealized gain (losses) arising during the period, before tax		(25)	12	(35)	(21)
Reclassification adjustment for (gains) losses included in net earnings, before tax		(3)	(1)	(9)	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract]
Reclassification of prior service credit included in net earnings, before tax	[1]	(1)	(1)	(2)	(2)
Other comprehensive income (loss), before tax		72	19	12	(252)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract]
Foreign currency translation adjustments, tax (expense) benefit		(1)	0	0	1
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect [Abstract]
Unrealized gains (losses) arising during the period, tax (expense) benefit		7	(5)	11	8
Reclassification adjustment for (gains) losses included in net earnings, tax (expense) benefit		1	0	3	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax [Abstract]
Reclassification of prior service credit included in earnings, tax (expense) benefit		0	0	0	0
Other comprehensive income (loss), tax (expense) benefit		7	(5)	14	9
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
Foreign currency translation adjustments, after-tax		100	9	58	(228)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Unrealized gains (losses) arising during the period, after-tax		(18)	7	(24)	(13)
Reclassification adjustment for (gains) losses included in net earnings, after-tax		(2)	(1)	(6)	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]
Reclassification of prior service credit included in net earnings, net of tax		(1)	(1)	(2)	(2)
Other comprehensive income (loss), after tax		79	14	26	(243)
Total comprehensive income (loss), after-tax		264	193	670	406
Total comprehensive income (loss) attributable to noncontrolling interests		0	0	2	0
Total comprehensive income (loss) attributable to Campbell Soup Company		$ 264	$ 193	$ 668	$ 406

[1] This is included in the components of net periodic benefit costs (see Note 9 for additional details).