Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Oct. 27, 2013		Oct. 28, 2012
Statement of Comprehensive Income [Abstract]
Net earnings	$ 171		$ 243
Other comprehensive income (loss), before tax [Abstract]
Foreign currency translation adjustments, before tax	48		12
Cash-flow hedges, before tax [Abstract]
Unrealized gains (losses) arising during the period, before tax	(3)		0
Pension and other postretirement benefits, before tax, [Abstract]
Reclassification of net actuarial loss included in net earnings before tax	22	[1]	30	[1]
Other comprehensive income (loss), before tax	67		42
Other comprehensive income (loss), tax (expense) benefit [Abstract]
Foreign currency translation adjustments, tax (expense) benefit	(2)		0
Cash-flow hedges, tax effect [Abstract]
Unrealized gains (losses) arising during the period, tax (expense) benefit	1		0
Pension and other postretirement liability adjustments, tax effect [Abstract]
Reclassification of net actuarial loss included in net earnings, tax (expense) benefit	(8)		(11)
Other comprehensive income (loss), tax (expense) benefit	(9)		(11)
Other comprehensive income (loss), after-tax [Abstract]
Foreign currency translation adjustments, after-tax	46		12
Cash-flow hedges, after-tax[Abstract]
Unrealized gains (losses) arising during the period, after-tax	(2)		0
Pension and other postretirement liability adjustments, after-tax [Abstract]
Reclassification of net actuarial loss included in net earnings, after-tax	14		19
Other comprehensive income (loss), after tax	58		31
Total comprehensive income (loss), after-tax	229		274
Total comprehensive income (loss) attributable to noncontrolling interests	(2)		(2)
Total comprehensive income (loss) attributable to Campbell Soup Company	$ 231		$ 276

[1] These items are included in the components of net periodic benefit costs (see Note 11 for additional details).