Derivative Financial Instruments (Details)	1 Months Ended				12 Months Ended
	Aug. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jan. 31, 2014 USD ($) agreement	Jul. 02, 2016 USD ($) cash_flow	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Apr. 30, 2016 USD ($)	Apr. 01, 2016 USD ($)	Oct. 31, 2015 USD ($)	Sep. 28, 2015 USD ($)	Sep. 23, 2015 USD ($)	Aug. 31, 2013 USD ($)
Derivative [Line Items]
Cash paid for settlement of cash flow hedge					$ 6,134,000	$ 0	$ 0
October 2015 Forward Starting Swaps
Derivative [Line Items]
Notional amount of derivative		$ 750,000,000								$ 750,000,000
August 2015 Forward Starting Swaps
Derivative [Line Items]
Notional amount of derivative	$ 500,000,000			$ 2,000,000,000
Cash paid for settlement of cash flow hedge	$ 6,100,000
Number of interest rate derivatives held | agreement				2
Interest rate swap agreements:
Derivative [Line Items]
Term of forecasted debt issuance (in years)	10 years
Interest rate swap agreements: | Hedging Instrument | Fair Value Hedging | Interest expense
Derivative [Line Items]
Amount of (Gain) or Loss Recognized					(12,033,000)	(21,960,000)	(10,879,000)
Interest rate swap agreements: | Hedging Instrument | Cash Flow Hedging
Derivative [Line Items]
Amount of (Gain) or Loss Recognized					6,134,000	55,374,000	(133,466,000)
Interest rate swap agreements: | Level 2 | Recurring Fair Value Measurements | Hedging Instrument | Other assets
Derivative [Line Items]
Fair value of interest rate swap agreements					$ 36,805,000	12,597,000
Interest rate swap 2018
Derivative [Line Items]
Notional amount of derivative		500,000,000											$ 500,000,000
Interest Rate Contract - 60 Semiannual Interest Cash Flows
Derivative [Line Items]
Number of cash flows | cash_flow					60
Amount of hedged item					$ 1,000,000,000.0
Interest Rate Contract 2 - 20 Semiannual Interest Cash Flows
Derivative [Line Items]
Number of cash flows | cash_flow					20
Amount of hedged item					$ 1,000,000,000.0
Foreign exchange option contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Unrealized loss on foreign currency derivatives					45,700,000
Forward starting interest rate swap agreements | Hedging Instrument | Cash Flow Hedging | Interest expense
Derivative [Line Items]
Amount of (Gain) or Loss Recognized					$ 11,543,000	$ 8,305,000	$ 625,000
Six Part Senior Notes Offering
Derivative [Line Items]
Debt instrument face amount		$ 5,000,000,000
Senior Notes October 2024 | August 2015 Forward Starting Swaps
Derivative [Line Items]
Term of forecasted debt issuance (in years)			10 years	10 years
Senior Notes October 2044 | August 2015 Forward Starting Swaps
Derivative [Line Items]
Term of forecasted debt issuance (in years)		30 years		30 years
Senior Notes, Maturing in October 2024
Derivative [Line Items]
Debt instrument face amount			$ 1,250,000,000
Senior Notes, Maturing in October 2024 | August 2015 Forward Starting Swaps
Derivative [Line Items]
Cash paid for settlement of cash flow hedge			58,900,000
Senior Notes, Maturing in October 2044
Derivative [Line Items]
Debt instrument face amount			$ 1,000,000,000
Senior Notes, Maturing in October 2044 | August 2015 Forward Starting Swaps
Derivative [Line Items]
Cash paid for settlement of cash flow hedge		$ 129,900,000
September 23, 2015
Derivative [Line Items]
Value of shares repurchased										(1,500,000,000)	$ 1,500,000,000	$ 1,500,000,000
Senior Notes
Derivative [Line Items]
Debt instrument face amount									$ 2,500,000,000.0
Senior notes										$ 2,000,000,000	2,000,000,000
Senior Notes | April 2019 and July 2021
Derivative [Line Items]
Debt instrument face amount								$ 1,000,000,000.0
Commercial Paper
Derivative [Line Items]
Debt instrument face amount											$ 500,000,000