Stock-Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Fair Value Assumptions and Methodology [Abstract]
Weighted average grant date fair value of grants (in dollars per share)	$ 22.10		$ 13.31		$ 9.98
Risk-free interest rate (in hundredths)	1.40%	[1]	0.80%	[1]	1.80%	[1]
Dividend yield (in hundredths)	3.10%	[2]	2.70%	[2]	2.60%	[2]
Expected volatility (in hundredths)	41.70%	[3]	46.80%	[3]	38.40%	[3]
Expected life	62 months	[4]	58 months	[4]	63 months	[4]
Options, Outstanding [Roll Forward]
Outstanding, beginning balance (in shares)	5,962,200
Granted (in shares)	2,778,000
Exercised (in shares)	(2,038,400)
Forfeited/cancelled/expired (in shares)	(58,900)
Outstanding, Ending (in shares)	6,642,900		5,962,200
Exercisable (in shares)	3,589,700
Weighted-average Exercise Price [Abstract]
Outstanding, beginning balance (in dollars per share)	$ 22.90
Granted (in dollars per share)	$ 78.57
Exercised (in dollars per share)	$ 19.65
Forfeited/cancelled/expired (in dollars per share)	$ 32.54
Outstanding, Ending (in dollars per share)	$ 47.10		$ 22.90
Exercisable (in dollars per share)	$ 23.23
Outstanding options, weighted-average remaining contractual term	4 years 5 months 19 days
Exercisable options, weighted-average remaining contractual term	2 years 9 months 29 days
Aggregate intrinsic value	$ 605,322,000
Aggregate intrinsic value, exercisable	412,774,000
Weighted-average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 78.57
Unrecognized stock-based compensation expense, period for recognition	4 years 5 months 19 days
Stock Options [Member]
Weighted-average Exercise Price [Abstract]
Outstanding options, weighted-average remaining contractual term	4 years
Total fair value of options vested and expensed, net of tax	13,200,000
Cash proceeds from stock options exercised	37,900,000		8,000,000		29,700,000
Tax benefit realized for stock options exercised	41,900,000		6,300,000		17,400,000
Intrinsic value of stock options exercised	241,700,000		10,600,000		61,600,000
Weighted-average Grant Date Fair Value [Abstract]
Unrecognized stock-based compensation expense	58,400,000
Unrecognized stock-based compensation expense, period for recognition	4 years
Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of stock options granted (in years)	7 years
Number of shares authorized for issuance (in shares)	7,000,000
Share-based compensation arrangement by share-based payment award, terms of award	Vesting for the options is performance based, with the options vesting in two installments if the Company's earnings per share equal or exceed the two established performance levels, measured in terms of diluted earnings per share. Fifty percent of the options vest upon earnings per share meeting or exceeding the first performance level and fifty percent of the options vest upon earnings per share meeting or exceeding the second performance level.
Weighted-average Grant Date Fair Value [Abstract]
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	3,200,000
Performance-Based Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, terms of award	Vesting for the options is performance based, with the options vesting in three installments if the Company's earnings per share equal or exceed the three established performance levels, measured in terms of diluted earnings per share. One third of the options will vest upon earnings per share meeting or exceeding the first performance level, one third of the options will vest upon earnings per share meeting or exceeding the second performance level and one third of the options will vest upon earnings per share meeting or exceeding the third performance level.
Options, Outstanding [Roll Forward]
Outstanding, beginning balance (in shares)	2,727,000
Granted (in shares)	2,605,500
Exercised (in shares)	(794,400)
Forfeited/cancelled/expired (in shares)	(55,000)
Outstanding, Ending (in shares)	4,483,100
Exercisable (in shares)	1,826,700
Weighted-average Exercise Price [Abstract]
Outstanding, beginning balance (in dollars per share)	$ 28.06
Granted (in dollars per share)	$ 77.51
Exercised (in dollars per share)	$ 25.10
Forfeited/cancelled/expired (in dollars per share)	$ 33.89
Outstanding, Ending (in dollars per share)	$ 57.25
Exercisable (in dollars per share)	$ 28.72
Outstanding options, weighted-average remaining contractual term	5 years 3 months 4 days
Exercisable options, weighted-average remaining contractual term	3 years 5 months 19 days
Aggregate intrinsic value	362,975,000
Aggregate intrinsic value, exercisable	200,034,000
Weighted-average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 77.51
Unrecognized stock-based compensation expense, period for recognition	5 years 3 months 4 days
Service-Based Options [Member]
Options, Outstanding [Roll Forward]
Outstanding, beginning balance (in shares)	3,235,200
Granted (in shares)	172,500
Exercised (in shares)	(1,244,000)
Forfeited/cancelled/expired (in shares)	(3,900)
Outstanding, Ending (in shares)	2,159,800
Exercisable (in shares)	1,763,000
Weighted-average Exercise Price [Abstract]
Outstanding, beginning balance (in dollars per share)	$ 18.55
Granted (in dollars per share)	$ 94.53
Exercised (in dollars per share)	$ 16.16
Forfeited/cancelled/expired (in dollars per share)	$ 13.45
Outstanding, Ending (in dollars per share)	$ 26.01
Exercisable (in dollars per share)	$ 17.55
Outstanding options, weighted-average remaining contractual term	2 years 9 months 25 days
Exercisable options, weighted-average remaining contractual term	2 years 2 months 1 day
Aggregate intrinsic value	242,347,000
Aggregate intrinsic value, exercisable	212,740,000
Weighted-average Grant Date Fair Value [Abstract]
Granted (in dollars per share)	$ 94.53
Unrecognized stock-based compensation expense, period for recognition	2 years 9 months 25 days
Non-Vested Restricted Stock [Member]
Weighted-average Exercise Price [Abstract]
Granted (in dollars per share)	$ 41.59
Number of shares [Roll forward]
Nonvested, beginning balance (in shares)	729,000
Granted (in shares)	315,800
Vested (in shares)	(305,400)
Forfeited (in shares)	(9,800)
Nonvested, Ending Balance (in shares)	729,600
Weighted-average Grant Date Fair Value [Abstract]
Nonvested, Beginning Balance (in dollars per share)	$ 39.68
Granted (in dollars per share)	$ 41.59
Vested (in dollars per share)	$ 34.88
Forfeited (in dollars per share)	$ 42.10
Nonvested, Ending Balance (in dollars per share)	$ 42.48
Unrecognized stock-based compensation expense	$ 16,400,000
Unrecognized stock-based compensation expense, period for recognition	2 years 2 months 12 days
Minimum [Member] | Stock Incentive Plan 1996 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of stock options granted (in years)	7 years
Maximum [Member] | Stock Incentive Plan 1996 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of stock options granted (in years)	10 years

[1] The risk-free interest rate is based upon the rate on a zero coupon U.S. Treasury bill, for periods within the contractual life of the option, in effect at the time of the grant.

[2] The dividend yield is based on the average of historical stock prices and actual dividends paid.

[3] Expected volatility is based on the historical volatility of the Company’s stock price, over a period similar to the expected life of the option.

[4] The expected term of the option is based on the historical employee exercise behavior, the vesting terms of the respective option, and a contractual life of either seven or ten years.