Shareholders' Equity - (Earnings Per Common Share) (Details) - Common Class A [Member] - shares	3 Months Ended	12 Months Ended
	Jul. 02, 2016	Sep. 30, 2017
Tangible Equity Units Senior Amortizing Note [Member]
Class of Stock [Line Items]
Incremental common shares attributable to dilutive effect of conversion of debt securities	0.3969
Equity Component [Member] | Minimum [Member]
Class of Stock [Line Items]
Number of equity instruments per contract (in shares)	1.9841	1.9841
Equity Component [Member] | Maximum [Member]
Class of Stock [Line Items]
Number of equity instruments per contract (in shares)	2.3810	2.3810