Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 29, 2018	Jun. 30, 2018	Sep. 30, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 26,373	$ 25,768	$ 41,184
Preferred stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Preferred stock, authorized (in shares)	1,500,000	1,500,000	1,500,000
Preferred stock, issued (in shares)	0	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, authorized (in shares)	2,000,000,000	2,000,000,000	2,000,000,000
Common stock, issued (in shares)	765,174,900	765,174,900	765,174,900
Treasury stock (in shares)	245,025,271	244,533,248	243,513,095