Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Nov. 01, 2015	Nov. 02, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 194	$ 248
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax [Abstract]
Foreign currency translation adjustments, before tax	(26)	(81)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax [Abstract]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(8)	(1)
Reclassification adjustment for (gains) losses included in net earnings, before tax	(2)	1
Other comprehensive income (loss), before tax	(36)	(81)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract]
Foreign currency translation adjustments, tax (expense) benefit	1	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect [Abstract]
Unrealized gains (losses) arising during the period, tax (expense) benefit	3	0
Reclassification adjustment for (gains) losses included in net earnings, tax (expense) benefit	0	0
Other comprehensive income (loss), tax (expense) benefit	4	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
Foreign currency translation adjustments, after-tax	(25)	(81)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Unrealized gains (losses) arising during the period, after-tax	(5)	(1)
Reclassification adjustment for (gains) losses included in net earnings, after-tax	(2)	1
Other comprehensive income (loss), after tax	(32)	(81)
Total comprehensive income (loss), after-tax	162	167
Total comprehensive income (loss) attributable to noncontrolling interests	0	0
Total comprehensive income (loss) attributable to Campbell Soup Company	$ 162	$ 167