Subsequent Event (Details)	3 Months Ended
	Jan. 01, 2016 USD ($) segment	Jul. 03, 2015 USD ($) segment	Aug. 09, 2015 USD ($)
Subsequent Event [Line Items]
Number of reportable segments | segment		3
Stock repurchase program, remaining authorization at end of period		$ 1,068,000,000
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount			$ 1,500,000,000.0
Scenario, Forecast
Subsequent Event [Line Items]
Number of reportable segments | segment	2
Scenario, Forecast | Discontinued Operations | Information Management
Subsequent Event [Line Items]
Sale of business, consideration	$ 8,000,000,000
Minimum | Scenario, Forecast | Discontinued Operations | Information Management
Subsequent Event [Line Items]
Estimated income taxes payable	1,300,000,000
Maximum | Scenario, Forecast | Discontinued Operations | Information Management
Subsequent Event [Line Items]
Estimated income taxes payable	$ 1,700,000,000