Debt Bridge Facility (Details) - USD ($)	Mar. 31, 2017	Jul. 01, 2016	May 12, 2016	Apr. 29, 2016
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 13,301,000,000	$ 17,526,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 1,000,000,000
Bridge Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 0	$ 3,000,000,000	$ 3,000,000,000
Letter of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 200,000,000