Capital Stock (Narrative) (Details) (USD $)	0 Months Ended								12 Months Ended					12 Months Ended						0 Months Ended		1 Months Ended	12 Months Ended				12 Months Ended
	Oct. 22, 2013	Jul. 23, 2013	May 15, 2013	Feb. 20, 2013	Nov. 06, 2012	Jul. 24, 2012	May 16, 2012	Jan. 24, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 25, 2013	Mar. 04, 2009	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2012 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2011 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Stock Option [Member]	Dec. 31, 2012 Stock Option [Member]	Dec. 31, 2011 Stock Option [Member]	Feb. 04, 2014 Subsequent Event [Member]	Jan. 28, 2014 Subsequent Event [Member]	Feb. 07, 2014 Subsequent Event [Member]	Dec. 31, 2013 Employee Stock Purchase Plan [Member]	Dec. 31, 2013 Call Option [Member]	Dec. 31, 2013 Call Option [Member] Minimum [Member]	Dec. 31, 2013 Call Option [Member] Maximum [Member]	Dec. 31, 2013 Shareholders' Equity [Member] Call Option [Member]	Dec. 31, 2013 Derivative assets [Member] Call Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Incentive compensation plan, increase in shares available													33,000,000
Number of registered shares for issue under the incentive compensation plan									60,100,000														14,000,000
Stock incentive plan vesting period, years																	3 years
Stock option term, years																	7 years
Share-based compensation cost									$ 146,000,000	$ 146,500,000	$ 134,800,000
Tax benefit from share-based compensation expense									52,600,000	52,000,000	48,600,000
Intrinsic value of options exercised																	176,000,000	65,400,000	115,800,000
Tax benefit from stock options exercised																	56,800,000	22,900,000	42,900,000
Cash received from exercise of stock options																	524,700,000	110,800,000	245,000,000
Fair value of shares vested														46,700,000	222,300,000	120,200,000
Approximate number of performance restricted stock units granted														900,000
Approximate number of performance restricted stock units earned														1,200,000
Unrecognized compensation cost related to restricted stock														88,100,000			10,500,000
Weighted-average remaining requisite service period, months														12 months			11 months
Common stock available for future grants									24,900,000
Maximum amount of stock employees are permitted to purchase per calender year																							23,750
Payroll deductions, percent of gross compensation, minimum																							1.00%
Payroll deductions, percent of gross compensation, maximum																							15.00%
Employee stock purchase plan purchase price per share as a percent of closing price									95.00%														95.00%
Common stock purchased under Stock Purchase Plan									0	0	0
Shares Available For Issuance Under Stock Purchase Plan																							6,100,000
Cash Dividend per Share	$ 0.3750	$ 0.3750	$ 0.3750	$ 0.3750	$ 0.2875	$ 0.2875	$ 0.2875	$ 0.2875													$ 0.4375
Cash dividend payment date	Dec. 23, 2013	Sep. 25, 2013	Jun. 25, 2013	Mar. 25, 2013	Dec. 21, 2012	Sep. 25, 2012	Jun. 25, 2012	Mar. 23, 2012													Mar. 25, 2014
Cash dividend record date	Dec. 09, 2013	Sep. 10, 2013	Jun. 10, 2013	Mar. 08, 2013	Dec. 07, 2012	Sep. 10, 2012	Jun. 08, 2012	Mar. 09, 2012													Mar. 10, 2014
Increase in stock repurchase program authorization												3,500,000,000.0
Accelerated share repurchase program, amount authorized																				600,000,000.0
Accelerated share repurchase program, shares repurchased									20,700,000	39,700,000										6,000,000		5,400,000
Number of shares subject to purchase call options																								3,000,000
Derivative, Cost of Hedge																								25,800,000			7,900,000	17,900,000
Derivative, Price Risk Option Strike Price, Per Share																									$ 77.50	$ 83.10
Derivative Assets																								$ 27,500,000