Fair Value Measurements- Level Three Assets (Details) - USD ($) $ in Millions	2 Months Ended
	Jul. 01, 2016	May 12, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 71	$ 501
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	(437)
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	7
2017 Call Options [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	70	501
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	(437)
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	6
2020 Call Options [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	1	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	0
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	$ 1