Indebtedness Additional Information (Details)														3 Months Ended	6 Months Ended		12 Months Ended
		Sep. 29, 2016 USD ($)	Mar. 15, 2016 USD ($)	Mar. 07, 2016 USD ($)	Dec. 09, 2015 USD ($)	Apr. 08, 2015 USD ($)	Apr. 08, 2015 EUR (€)	Mar. 30, 2015 USD ($)	Mar. 30, 2015 EUR (€)	Dec. 05, 2014 USD ($)	Dec. 02, 2014 USD ($)	Nov. 06, 2014 USD ($)	Sep. 06, 2013 USD ($)	Dec. 27, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 27, 2014 USD ($)	Dec. 31, 2016 USD ($)	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Jun. 30, 2015 USD ($)	Mar. 30, 2015 EUR (€)	Dec. 05, 2014 EUR (€)	Nov. 08, 2013 USD ($)
Debt Instrument [Line Items]
Debt instrument, issuance date				Mar. 07, 2016	Dec. 09, 2015			Mar. 30, 2015	Mar. 30, 2015	Dec. 05, 2014		Nov. 06, 2014	Sep. 06, 2013
Ownership percentage by parent					100.00%
Debt instrument, face amount													$ 600,000,000
Senior notes															$ 4,698,300,000		$ 5,373,100,000	$ 4,720,900,000					$ 2,300,000,000
Line of credit facility, collateral												364 days
Extinguishment of debt										$ 895,000,000
Loss on extinguishment of debt														$ 9,600,000	900,000	$ 9,600,000	1,100,000	10,500,000	$ 165,800,000
Loans payable													1,000,000,000					300,000,000
Amount outstanding and due to factor															42,200,000					$ 88,700,000
2015 Revolver
Debt Instrument [Line Items]
Debt instrument, face amount					$ 750,000,000
Repayments of debt			$ 750,000,000
2014 Revolver
Debt Instrument [Line Items]
Debt instrument, face amount										$ 600,000,000
Line of credit facility, maximum borrowing capacity | €																						€ 1,000,000,000
Repayments of debt			$ 435,000,000
Bridge Credit Agreements
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												$ 2,200,000,000
2014 Euro-Denominated Term Loan due December 5, 2019
Debt Instrument [Line Items]
Debt instrument, face amount | €																						614,300,000
Loans payable	[1]														488,800,000		420,700,000	530,500,000
Periodic payment																	$ 55,000,000
2014 Euro-Denominated Term Loan due December 5, 2019 additional draw
Debt Instrument [Line Items]
Debt instrument, face amount | €																						368,600,000
3.500% Unsecured Senior notes due March 15, 2021
Debt Instrument [Line Items]
Debt instrument, face amount				$ 500,000,000.0
Interest rate, stated percentage				3.50%													3.50%
Senior notes	[2]														0		$ 500,000,000	0
Maturity date																	Mar. 15, 2021
4.375% senior note due March 15, 2026
Debt Instrument [Line Items]
Debt instrument, face amount				$ 700,000,000.0
Interest rate, stated percentage				4.375%													4.375%
Senior notes	[2]														0		$ 700,000,000	0
Maturity date																	Mar. 15, 2026
Debt securities
Debt Instrument [Line Items]
Senior notes				$ 1,200,000,000
3.5% Senior note due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, issuance date											Dec. 02, 2014
Debt instrument, face amount											$ 500,000,000
Interest rate, stated percentage											3.50%						3.50%
Senior notes	[3]														500,000,000		$ 500,000,000	500,000,000
Maturity date																	Dec. 15, 2021
3.9% senior note due 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount											$ 700,000,000
Interest rate, stated percentage											3.90%						3.90%
Senior notes	[3]														700,000,000		$ 700,000,000	700,000,000
Maturity date																	Dec. 15, 2024
4.9% Senior Loan due 2044 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount											$ 400,000,000
Interest rate, stated percentage											4.90%						4.90%
Senior notes	[3]														400,000,000		$ 400,000,000	400,000,000
Maturity date																	Dec. 15, 2044
2014 bonds [Member]
Debt Instrument [Line Items]
Senior notes											$ 1,600,000,000
1.30% Unsecured Senior Notes due November 8, 2016 [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage																	1.30%
Senior notes	[4]														500,000,000		$ 0	500,000,000
Repayments of debt		$ 500,000,000
Maturity date																	Nov. 08, 2016
2.30% Unsecured Senior notes November 8, 2018
Debt Instrument [Line Items]
Debt instrument, face amount																							600,000,000.000
Interest rate, stated percentage																	2.30%
Senior notes	[4]														600,000,000		$ 600,000,000	600,000,000
Maturity date																	Nov. 08, 2018
4.00% Unsecured Senior Notes due November 15, 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount																							800,000,000.000
Interest rate, stated percentage																	4.00%
Senior notes	[4]														800,000,000		$ 800,000,000	800,000,000
Maturity date																	Nov. 15, 2023
5.30% Unsecured Senior Notes due November 15, 2043 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount																							$ 400,000,000
Interest rate, stated percentage																	5.30%
Senior notes	[4]														400,000,000		$ 400,000,000	400,000,000
Maturity date																	Nov. 15, 2043
2013 Term Loan due December 18, 2018
Debt Instrument [Line Items]
Loans payable													300,000,000
2013 Term Loan due December 18, 2015
Debt Instrument [Line Items]
Loans payable													$ 700,000,000
Over Draft
Debt Instrument [Line Items]
Amount outstanding															82,900,000			$ 0
Euro Member Countries, Euro | Bridge Credit Agreements
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												$ 1,750,000,000
Euro Member Countries, Euro | 2014 Euro-Denominated Term Loan due December 5, 2019
Debt Instrument [Line Items]
Debt instrument, face amount | €																						500,000,000
Euro Member Countries, Euro | 2014 Euro-Denominated Term Loan due December 5, 2019 additional draw
Debt Instrument [Line Items]
Debt instrument, face amount | €																						€ 300,000,000
Omega Restated
Debt Instrument [Line Items]
Extinguishment of debt						$ 539,100,000
Long-term debt															$ 1,471,000,000
Omega Restated | 6.19% Senior Note
Debt Instrument [Line Items]
Interest rate, stated percentage								6.19%													6.19%
Maturity date								Jan. 01, 2016	Jan. 01, 2016
Omega Restated | 5.1045% Senior Note
Debt Instrument [Line Items]
Interest rate, stated percentage								5.1045%													5.1045%
Maturity date								Jan. 01, 2023	Jan. 01, 2023
Long-term debt								$ 147,000,000
Omega Restated | 5.125% Retail Bond
Debt Instrument [Line Items]
Interest rate, stated percentage								5.125%													5.125%
Business combination, current liabilities, long-term debt								$ 326,700,000
Maturity date								Jan. 01, 2017	Jan. 01, 2017
Omega Restated | 4.5% Retail Bond [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage								4.50%													4.50%
Business combination, current liabilities, long-term debt								$ 196,000,000
Maturity date								Jan. 01, 2017	Jan. 01, 2017
Omega Restated | 5.0% Retail Bond [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage								5.00%													5.00%
Business combination, current liabilities, long-term debt								$ 130,700,000
Maturity date								Jan. 01, 2019	Jan. 01, 2019
Omega Restated | Credit facility indebtedness
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt								$ 544,500,000
Omega Restated | Over Draft
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt								56,000,000
Omega Restated | Euro Member Countries, Euro
Debt Instrument [Line Items]
Extinguishment of debt | €							€ 500,000,000
Omega Restated | Euro Member Countries, Euro | 5.1045% Senior Note
Debt Instrument [Line Items]
Long-term debt | €																					€ 135,000,000
Omega Restated | Euro Member Countries, Euro | 5.125% Retail Bond
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt | €																					300,000,000
Omega Restated | Euro Member Countries, Euro | 4.5% Retail Bond [Member]
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt | €																					180,000,000
Omega Restated | Euro Member Countries, Euro | 5.0% Retail Bond [Member]
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt | €																					120,000,000
Omega Restated | Euro Member Countries, Euro | Credit facility indebtedness
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt | €																					500,000,000
Omega Restated | Euro Member Countries, Euro | Over Draft
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt | €																					€ 51,400,000
Omega Restated
Debt Instrument [Line Items]
Amount debt exceeded par value								101,900,000
Omega Restated | Euro Member Countries, Euro
Debt Instrument [Line Items]
Amount debt exceeded par value | €									€ 93,600,000
Omega Restated | Omega Restated | 6.19% Senior Note
Debt Instrument [Line Items]
Business combination, current liabilities, long-term debt								$ 20,000,000

[1] *Debt denominated in euros subject to fluctuations in the euro-to-U.S. dollar exchange rate.

[2] (4)Discussed below collectively as the "2016 Notes."

[3] (1)Discussed below collectively as the "2014 Notes."

[4] (2)Discussed below collectively as the "2013 Notes."