Indebtedness (Debt arrangements) (details)						6 Months Ended		6 Months Ended		6 Months Ended	12 Months Ended		6 Months Ended	12 Months Ended		6 Months Ended					6 Months Ended					6 Months Ended					6 Months Ended		12 Months Ended			6 Months Ended		12 Months Ended			6 Months Ended		12 Months Ended			6 Months Ended		12 Months Ended					0 Months Ended				0 Months Ended
	Dec. 27, 2014 USD ($)	Nov. 06, 2014 USD ($)	Jun. 28, 2014 USD ($)	Nov. 08, 2013 USD ($)	Sep. 06, 2013 USD ($)	Dec. 27, 2014 2014 Term Loan due December 18, 2015 [Member] USD ($)	Jun. 28, 2014 2014 Term Loan due December 18, 2015 [Member] USD ($)	Dec. 27, 2014 2014 Term Loan due December 5, 2019 [Member] USD ($)	Jun. 28, 2014 2014 Term Loan due December 5, 2019 [Member] USD ($)	Dec. 27, 2014 2013 Term Loan due December 18, 2015 [Member] USD ($)	Jun. 28, 2014 2013 Term Loan due December 18, 2015 [Member] USD ($)	Sep. 06, 2013 2013 Term Loan due December 18, 2015 [Member] USD ($)	Dec. 27, 2014 2013 Term Loan due December 18, 2018 [Member] USD ($)	Jun. 28, 2014 2013 Term Loan due December 18, 2018 [Member] USD ($)	Sep. 06, 2013 2013 Term Loan due December 18, 2018 [Member] USD ($)	Dec. 27, 2014 3.5% Unsecured Senior Notes due November, 2021 [Member] USD ($)		Dec. 02, 2014 3.5% Unsecured Senior Notes due November, 2021 [Member]	Jun. 28, 2014 3.5% Unsecured Senior Notes due November, 2021 [Member] USD ($)		Dec. 27, 2014 3.90% Unsecured Senior Notes due November, 2024 [Member] USD ($)		Dec. 02, 2014 3.90% Unsecured Senior Notes due November, 2024 [Member]	Jun. 28, 2014 3.90% Unsecured Senior Notes due November, 2024 [Member] USD ($)		Dec. 27, 2014 4.90% Unsecured Senior Notes due November, 2044 [Member] USD ($)		Dec. 02, 2014 4.90% Unsecured Senior Notes due November, 2044 [Member]	Jun. 28, 2014 4.90% Unsecured Senior Notes due November, 2044 [Member] USD ($)		Dec. 27, 2014 1.30% Unsecured Senior Notes due November 8, 2016 [Member] USD ($)		Jun. 28, 2014 1.30% Unsecured Senior Notes due November 8, 2016 [Member] USD ($)		Nov. 08, 2013 1.30% Unsecured Senior Notes due November 8, 2016 [Member] USD ($)	Dec. 27, 2014 2.30% Unsecured Senior notes November 8, 2018 [Member] USD ($)		Jun. 28, 2014 2.30% Unsecured Senior notes November 8, 2018 [Member] USD ($)		Nov. 08, 2013 2.30% Unsecured Senior notes November 8, 2018 [Member] USD ($)	Dec. 27, 2014 4.00% Unsecured Senior Notes due November 15, 2023 [Member] USD ($)		Jun. 28, 2014 4.00% Unsecured Senior Notes due November 15, 2023 [Member] USD ($)		Nov. 08, 2013 4.00% Unsecured Senior Notes due November 15, 2023 [Member] USD ($)	Dec. 27, 2014 5.30% Unsecured Senior Notes due November 15, 2043 [Member] USD ($)		Jun. 28, 2014 5.30% Unsecured Senior Notes due November 15, 2043 [Member] USD ($)		Nov. 08, 2013 5.30% Unsecured Senior Notes due November 15, 2043 [Member] USD ($)	Dec. 05, 2014 Tranche December 18, 2015 [Member] USD ($)	Dec. 05, 2014 2014 Revolver [Member] USD ($)	Nov. 06, 2014 Debt Bridge Credit Agreement [Member]	Jul. 28, 2013 Debt Bridge Credit Agreement [Member] USD ($)	Dec. 27, 2014 2014 Bonds [Member] USD ($)	Jul. 28, 2013 Cash Bridge Credit Agreement [Member] USD ($)	Nov. 06, 2014 Omega [Member]	Dec. 05, 2014 Euro Member Countries, Euro Tranche December 5, 2019 [Member] EUR (€)	Dec. 05, 2014 Euro Member Countries, Euro 2014 Revolver [Member] EUR (€)	Nov. 06, 2014 Euro Member Countries, Euro Debt Bridge Credit Agreement [Member] EUR (€)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																3.50%		3.50%			3.90%		3.90%			4.90%		4.90%			1.30%		1.30%			2.30%		2.30%			4.00%		4.00%			5.30%		5.30%
Short-term Debt	$ 0		$ 2,100,000
Term loans	908,900,000		930,000,000		1,000,000,000	300,000,000	0	608,900,000	0	0	300,000,000	300,000,000	0	630,000,000	700,000,000																																				300,000,000	600,000,000						500,000,000	300,000,000
Senior Notes	3,890,000,000		2,294,000,000	2,300,000,000												499,700,000	[1]		0	[1]	697,100,000	[1]		0	[1]	398,800,000	[1]		0	[1]	499,700,000	[1]	499,600,000	[1]		599,300,000	[1]	599,300,000	[1]		797,000,000	[1]	796,800,000	[1]		398,400,000	[1]	398,300,000	[1]						1,600,000,000
Other financing	2,800,000		8,100,000
Total borrowings outstanding	4,801,700,000		3,234,200,000
Debt, Short Term and Current Portion of Long Term	362,300,000		143,700,000
Long-term debt, less current portion	4,439,400,000		3,090,500,000
Deferred financing fee	43,900,000		27,400,000
Business Acquisition, Date of Acquisition Agreement																																																									Nov. 06, 2014
Line of Credit Facility, Maximum Borrowing Capacity		1,000,000,000																																																				2,650,000,000		1,700,000,000				1,750,000,000
Line of Credit Facility, Expiration Period																																																					364 days
Line of Credit Facility, Fair Value of Amount Outstanding	0		0
Debt Instrument, Face Amount																500,000,000					700,000,000					400,000,000									500,000,000					600,000,000					800,000,000					400,000,000
Debt Instrument, Maturity Date						Dec. 18, 2015		Dec. 05, 2019		Dec. 15, 2015	Dec. 15, 2015		Dec. 15, 2018	Dec. 15, 2018		Dec. 15, 2021					Dec. 15, 2024					Dec. 15, 2044					Nov. 08, 2016		Nov. 08, 2016			Nov. 08, 2018		Nov. 08, 2018			Nov. 15, 2023		Nov. 15, 2023			Nov. 15, 2043		Nov. 15, 2043
Debt Instrument, Unamortized Discount																$ 300,000					$ 2,900,000					$ 1,200,000					$ 300,000					$ 700,000					$ 3,000,000					$ 1,600,000

[1] Private placement unsecured senior notes with registration rights as of June 28, 2014 and public bonds as of October 1, 2014, discussed below collectively as the "2013 Bonds."