Capital Actions (Details) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021 USD ($) transaction	Sep. 30, 2021 USD ($) transaction shares
Accelerated Share Repurchases [Line Items]
Value of shares repurchased \| $	$ 550	$ 1,077
January 26, 2021 ASR
Accelerated Share Repurchases [Line Items]
Value of shares repurchased \| $		$ 180
Shares Repurchased on Repurchase Date		4,951,456
Shares Received from Forward Contract Settlement		366,939
Total Shares Repurchased		5,318,395
April 23, 2021 ASR
Accelerated Share Repurchases [Line Items]
Value of shares repurchased \| $		$ 347
Shares Repurchased on Repurchase Date		7,894,807
Shares Received from Forward Contract Settlement		675,295
Total Shares Repurchased		8,570,102
July 27, 2021 ASR
Accelerated Share Repurchases [Line Items]
Value of shares repurchased \| $		$ 550
Shares Repurchased on Repurchase Date		13,065,958
Shares Received from Forward Contract Settlement		1,413,211
Total Shares Repurchased		14,479,169
Number of transactions \| transaction	2	2
Notional amount \| $	$ 275	$ 275

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Nominal or face amount used to calculate payment on derivative.

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The number of derivative instruments of a particular group held by the entity.

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Additional shared included in the calculation of diluted EPS as a result of the potentially dilutive effect of equity forward arrangements using the reverse treasury stock method.

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Number of stock bought back by the entity at the exercise price or redemption price.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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