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PreferredDividendsReductiontoRetainedEarningsatRedemption

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- Definition

PreferredStockIssuanceCostsReductiontoNetIncome

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Stockholders' equity and comprehensive income (loss) [Line Items]

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Value of Total Common Stock Repurchased Under Current Repurchase Program

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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The cash outflow to reacquire common stock during the period.

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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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The redemption terms of preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity. The redemption features of this capital stock are solely within the control of the issuer.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Stockholders' Equity And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 15, 2024	Jun. 28, 2019	Jun. 28, 2018	Dec. 15, 2017
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Dividends, Preferred Stock		$ 79,000,000		$ 64,000,000	$ 64,000,000
Stock Repurchase Program, Authorized Amount							$ 1,370,000,000	$ 2,031,000,000.000
Cash dividend declared (in dollars per share)		$ 0.59		$ 0.46	$ 0.315
Shares repurchased (in shares)	47,500		115,380
ValueofTotalCommonStockRepurchasedUnderCurrentRepurchaseProgram	$ 721,500,000
Payments for Repurchase of Common Stock		$ 1,101,000,000		$ 2,122,000,000	$ 1,275,000,000
ValueofTotalCommonStockRepurchasedUnderCurrentProgram								$ 2,031,000,000.000
Series A Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount									$ 113,000,000
PreferredDividendsReductiontoRetainedEarningsatRedemption									100,000,000
PreferredStockIssuanceCostsReductiontoNetIncome									$ 13,000,000
Series A Preferred Stock [Member] \| Debt Instrument, Redemption, Period One [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Redemption Terms		90 days
Series B Preferred Stock [Member] \| Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount						$ 67,000,000
PreferredDividendsReductiontoRetainedEarningsatRedemption						52,000,000
PreferredStockIssuanceCostsReductiontoNetIncome						15,000,000
Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred stock, liquidation preference of per share (in dollars per share)	$ 1,000.00	$ 1,000.00
Dividends, Preferred Stock		$ 64,000,000		$ 64,000,000
Preferred Stock [Member] \| Depositary Shares [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred stock, liquidation preference of per share (in dollars per share)	$ 25.00	$ 25.00
Series C Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Dividends, Preferred Stock		$ 15,000,000
Series C Preferred Stock [Member] \| Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount						10,000,000
PreferredDividendsReductiontoRetainedEarningsatRedemption						$ 10,000,000