Shareholders' Equity (Additional Information) (Details) shares in Thousands, $ in Millions	1 Months Ended	3 Months Ended
	Jul. 31, 2021 USD ($) shares	Jun. 30, 2021 USD ($) transaction shares
Class of Stock [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased | shares		10,000
Treasury Stock
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired | shares		(3,724)
Treasury Stock, Value, Acquired, Cost Method		$ (900)
Capital in Excess of Par Value
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method		(100)
Accelerated Share Repurchase Program
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount		$ 500
Treasury Stock, Shares, Acquired | shares		1,658
Number of Transactions | transaction		2
Accelerated Share Repurchase Program | Treasury Stock
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method		$ 400
Accelerated Share Repurchase Program | Capital in Excess of Par Value
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method		$ 100
Accelerated Share Repurchase Program | Subsequent Event
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired | shares	403
Accelerated Share Repurchase Program | Subsequent Event | Treasury Stock
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method	$ 100
Accelerated Share Repurchase Program | Subsequent Event | Capital in Excess of Par Value
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method	$ 100
Open market repurchases
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired | shares		2,066
Open market repurchases | Treasury Stock
Class of Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method		$ 500