Share-Based Compensation-Option/RSU Rollforward (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Jan. 01, 2012
Stock options and stock appreciation rights
Options and SARs outstanding Beginning Balance, Shares	17,559
Options and SARs outstanding Beginning Balance, Weighted Average Exercise Price (per share)	$ 36.55
Options and SARs outstanding Beginning Balance, Weighted Average Remaining Contractual Term	3 years 4 months	3 years 5 months
Options and SARs outstanding Beginning Balance, Aggregate Intrinsic Value	$ 257,251
Granted, Shares	2,171
Granted Weighted Average Exercise Price (per share)	$ 46.82
Exercised, Shares	(2,853)
Exercised Weighted Average Exercise Price (per share)	$ 22.42
Exercised Aggregate Intrinsic Value	66,663
Forfeited, Shares	(275)
Forfeited Weighted Average Exercise Price (per share)	$ 36.28
Expired, Shares	(235)
Expired Weighted Average Exercise Price (per share)	$ 52.82
Options and SARs outstanding Ending Balance, shares	16,367	17,559
Options and SARs outstanding Ending Balance, Weighted Average Exercise Price (per share)	$ 40.15	$ 36.55
Options and SARs outstanding Ending Balance, Weighted Average Remaining Contractual Term	3 years 4 months	3 years 5 months
Options and SARs outstanding Ending Balance, Aggregate Intrinsic Value	130,753	257,251
Stock options and stock appreciation rights, expected to vest
Options and SARs vested and expected to vest, net of forfeitures, Shares	15,797
Options and SARs vested and expected to vest, net of forfeitures,Weighted Average Exercise Price (per share)	$ 40.00
Options and SARs vested and expected to vest, net of forfeitures, Weighted Average Remaining Contractual Term	3 years 2 months
Options and SARs vested and expected to vest, net of forfeitures, Aggregate Intrinsic Value	129,132
Stock options and stock appreciation rights, exercisable
Options and SARs, Exercisable, Number	10,878
Options and SARs, Exercisable, Weighted Average Exercise Price	$ 39.71
Options and SARs, Exercisable, Weighted Average Remaining Contractual Term	2 years 2 months
Options and SARs, Exercisable, Intrinsic Value	$ 99,862
Summary of the changes in RSUs outstanding
Beginning Balance,Non-vested share units	2,051
Beginning Balance,Non-vested share units Weighted Average Grant Date Fair Value (per share)	$ 40.22
Beginning Balance,Non-vested share units Aggregate Intrinsic Value	$ 100,913,000
Granted, Shares	1,697
Granted Weighted Average Grant Date Fair Value (per share)	$ 45.25
Vested, Shares	(640)
Vested Weighted Average Grant Date Fair Value (per share)	$ 47.82
Vested Aggregate Intrinsic Value	$ 29,227,000
Forfeited, Shares	(144)
Forfeited Weighted Average Grant Date Fair Value (per share)	$ 42.54
Assumed through acquisition, shares	59
Assumed through acquisition, Weighted Average Fair Value (per share)	$ 46.63
Ending Balance Non-vested share units	3,023	2,051
Ending Balance Non-vested share units Weighted Average Grant Date Fair Value (per share)	$ 42.74	$ 40.22
Ending Balance,Non-vested share units Aggregate Intrinsic Value	$ 131,307,000	$ 100,913,000