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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The percentage rate used to calculate dividend payments on preferred stock.

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The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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The cash inflow from the additional capital contribution to the entity.

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Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.

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No definition available.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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No definition available.

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Stock Transactions And Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions			1 Months Ended		3 Months Ended
	Apr. 02, 2021	Dec. 31, 2020	May 31, 2020	Mar. 31, 2019	Apr. 02, 2021	Jul. 16, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares to be repurchased						20,000
Remaining number of shares authorized to be repurchased	20,000				20,000
Common shares reserved for issuance under the 2007 Omnibus Incentive Plan, shares	50,000				50,000
RSU/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 261				$ 261
Weighted average period for cost to be recognized					3 years
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 255				$ 255
Weighted average period for cost to be recognized	3 years
Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock			10,900
Common stock issued, price per share			$ 163.00
Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, proceeds from issuance			$ 1,730
Payments of stock issuance costs			$ 54
Threshold consecutive trading days			20	20
Preferred stock \| Preferred stock series B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments of stock issuance costs			$ 49
Preferred stock, shares issued	1,720	1,720	1,720		1,720
Preferred stock, dividend rate, percent	5.00%	5.00%	5.00%
Preferred stock, liquidation preference per share			$ 1,000
Preferred stock, proceeds from the issuance			$ 1,670
Preferred stock \| Preferred stock series A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares issued	1,650	1,650		1,650	1,650
Preferred stock, dividend rate, percent	4.75%	4.75%		4.75%
Preferred stock, liquidation preference per share				$ 1,000