Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 30, 2017	Jul. 01, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 52,588	$ 31,059	$ 48,612
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)	243,764,879	235,135,699	224,792,348