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Percentage of options that vest at the end of year three.

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Percentage of options that vest at the end of year two.

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net number of share options (or share units) granted during the period.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-Based Compensation And Other Compensation Arrangements (Narrative) (Details) - USD ($)				12 Months Ended
	Feb. 23, 2015	Feb. 24, 2014	Feb. 25, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of shares of stock available for issuance				87,000,000
Stock options vesting percentage after the first year			34.00%
Stock options vesting percentage after the second year			33.00%
Stock options vesting percentage after the third year			33.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value				$ 385,000,000	$ 250,000,000	$ 546,000,000
Cash received from options exercised				399,000,000	343,000,000	1,097,000,000
Tax benefit realized from exercise of stock options				135,000,000	87,000,000	190,000,000
Grant date fair value of stock options vested				56,000,000	87,000,000	89,000,000
Deferred compensation				63,000,000	44,000,000	$ 238,000,000
Deferred compensation liability which is being marked to market				1,191,000,000	$ 1,234,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate			29.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			1.00%
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted			6,591,968
Share-based payment award options expiration term (in years)			10 years
Award vesting period (in years)			3 years
Total unrecognized compensation cost				$ 4,000,000
Weighted average period (in years) over which the unrecognized compensation cost related to stock options is expected to be recognized				2 months
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units (RSUs) granted	590,778	695,651	1,375,414
Restricted stock units (RSUs) granted (fair value per share)	$ 154.64	$ 129.58	$ 75.97
Performance Awards [Member] \| 2015 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Initial Value Of Performance Awards (per unit)	$ 100
Performance Awards [Member] \| 2014 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		3 years
Performance Awards [Member] \| 2013 Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			3 years
Performance Awards [Member] \| Minimum [Member] \| 2015 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount payable at end of three-year performance period (per unit)	0
Performance Awards [Member] \| Minimum [Member] \| 2014 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Awards payout		$ 0
Performance Awards [Member] \| Minimum [Member] \| 2013 Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Awards payout			$ 0
Performance Awards [Member] \| Maximum [Member] \| 2015 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount payable at end of three-year performance period (per unit)	$ 200
Performance Awards payout				$ 349,000,000
Performance Awards [Member] \| Maximum [Member] \| 2014 Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount payable at end of three-year performance period (per unit)		$ 200
Performance Awards payout				327,000,000
Performance Awards [Member] \| Maximum [Member] \| 2013 Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount payable at end of three-year performance period (per unit)			$ 200
Performance Awards payout				$ 255,000,000
Performance Based Restricted Stock Units (PBRSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units (RSUs) granted	556,203	662,215
Restricted stock units (RSUs) granted (fair value per share)	$ 164.26	$ 136.12
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	20.35%	24.20%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.03%	0.72%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| 2015 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Initial PBRSU value, percentage of value it cannot exceed	400.00%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| 2014 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Initial PBRSU value, percentage of value it cannot exceed		400.00%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| Minimum [Member] \| 2015 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Payout Range	0.00%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| Minimum [Member] \| 2014 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Payout Range		0.00%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| Maximum [Member] \| 2015 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Payout Range	200.00%
Performance Based Restricted Stock Units (PBRSUs) [Member] \| Maximum [Member] \| 2014 PBRSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Payout Range		200.00%