Capital Stock (Narrative) (Details) - USD ($)		5 Months Ended	12 Months Ended			36 Months Ended
	Jun. 11, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 11, 2024
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		6,000,000,000	6,000,000,000
Stock repurchase program, authorized amount	$ 7,000,000,000
Repurchases of common stock			$ 775,000,000	$ 0	$ 0
Stock repurchase program, period	3 years
Common stock repurchased (in shares)		8,500,000
Common stock repurchased, at cost		$ 785,000,000	$ 785,000,000
Shares of common stock reserved (in shares)		23,461,358	23,461,358
Preferred stock shares authorized (in shares)		250,000,000	250,000,000
Minimum | Forecast [Member]
Class of Stock [Line Items]
Repurchases of common stock						$ 5,000,000,000
Maximum | Forecast [Member]
Class of Stock [Line Items]
Repurchases of common stock						$ 7,000,000,000