Stockholder's Equity (Narrative) (Details) (USD $)	12 Months Ended				1 Months Ended	0 Months Ended
	Dec. 28, 2014 Increment	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012	Sep. 30, 2014	Feb. 02, 2015	Feb. 28, 2015 installment	Oct. 31, 2011	Jan. 27, 2015
Treasury Stock
Treasury shares repurchased (shares)	1,396,290	0	0
Purchase of treasury stock	$ 146,600,000	$ 0		$ 34,900,000
Treasury stock (shares)	1,042,281	0		577,923
Line of Credit Facility, Current Borrowing Capacity	750,000,000
Preferred Stock
Preferred stock issued
Preferred stock, shares outstanding
Stock Incentive Plan
Stock options maximum life	10 years
Period used for the exchange traded option included the longest dated options	3 months
Grant date fair value of stock options granted	$ 36.19	$ 27.17	$ 23.90
Non-Employee Director Stock Compensation Plan
Pretax intrinsic value of options exercised	23,200,000	14,200,000
Intrinsic value of options outstanding	120,500,000
Intrinsic value of options exercisable	98,900,000
Amount of cash received from exercise of stock options	18,300,000	12,100,000
Performance Share Plan
Stock options proportion exercisable on first second and third year	0.3333
Stock options
Stock Incentive Plan
Vesting period over which employee stock option grants are evenly expensed	3 years
Share-based compensation expense	14,000,000	10,700,000	8,000,000
Non-Employee Director Stock Compensation Plan
Unrecognized compensation cost related to non-vested awards	23,500,000
Weighted average period for non-vested awards expected to be recognized	1 year 4 months 18 days
Non-employee stock option
Stock Incentive Plan
Stock options maximum life	10 years
Non-Employee Director Stock Compensation Plan
Period after issuance until stock options exercisable	1 year
Performance shares
Stock Incentive Plan
Share-based compensation expense	6,200,000	3,200,000	3,200,000
Performance Share Plan
Performance period for judging awards	3 years
Share based compensation arrangement by share based payment award, shares expected to be issued in three equal installments	33,411			109,557
Market price of issued shares			$ 55.58
Number of shares issued	19,742	23,519	36,531
Restricted stock
Stock Incentive Plan
Share-based compensation expense	2,800,000	2,100,000	1,400,000
Non-Employee Director Stock Compensation Plan
Unrecognized compensation cost related to non-vested awards	2,200,000
Weighted average period for non-vested awards expected to be recognized	1 year
Restricted Stock Award Program
Shares of restricted stock issued and outstanding	108,726
Subsequent Event | Performance shares
Performance Share Plan
Number of equal annual installments							3
Common Stock
Treasury Stock
Number of shares authorized to be repurchased								2,500,000
Treasury shares repurchased (shares)				658,562
Accelerated Share Repurchase Program
Treasury Stock
Number of shares authorized to be repurchased	1,030,000
Treasury shares repurchased (shares)	1,396,290				927,000
Purchase of treasury stock					91,400,000
Stock repurchase program, authorized amount					101,600,000
Treasury stock acquired, average cost per share	$ 97.70				$ 98.62
Percentage of shares repurchased					90.00%
Stock repurchase program, remaining number of shares authorized to be repurchased	342,148
Accelerated Share Repurchase Program | Subsequent Event
Treasury Stock
Number of shares authorized to be repurchased						1,500,000			2,500,000
Treasury shares repurchased (shares)						1,425.000
Purchase of treasury stock						134,900,000
Stock repurchase program, authorized amount						142,000,000
Treasury stock acquired, average cost per share						$ 94.68
Percentage of shares repurchased						95.00%
Accelerated Share Repurchase Program | Subsequent Event | Revolving credit facility
Treasury Stock
Purchase of treasury stock						$ 120,000,000