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Fair Value Measurements (Details) - USD ($)	3 Months Ended			9 Months Ended
Fair Value Measurements (Details) - USD ($)	Sep. 28, 2018	Mar. 30, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017	Dec. 29, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 0		$ 0	$ 7,000,000	$ 0
Interest Rate Swap \| Designated as Hedging Instrument \| $450 million notes, due December 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Hedged instrument, face amount	$ 450,000,000			$ 450,000,000
Stated interest rate (in percentage)	4.45%			4.45%
Interest Rate Swap \| Designated as Hedging Instrument \| $450 million notes, due December 2020 \| Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate (in percentage)	4.45%			4.45%
Interest Rate Swap, Maturity Date August 2025 \| Designated as Hedging Instrument \| Secured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate (in percentage)	3.00%			3.00%
Interest Rate Swap, Maturity Date August 2025 \| Designated as Hedging Instrument \| Variable Rate Loan \| Secured Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Hedged instrument, face amount	$ 1,500,000,000			$ 1,500,000,000
Carrying value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0			0		$ 37,000,000
Derivative liability	14,000,000			14,000,000		0
Fair value of notes receivable	24,000,000			24,000,000		63,000,000
Fair value of debt instrument	3,000,000,000			3,000,000,000		3,100,000,000
Fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0			0		37,000,000
Derivative liability	14,000,000			14,000,000		0
Fair value of debt instrument	$ 3,100,000,000			$ 3,100,000,000		$ 3,200,000,000
Corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		$ 7,000,000