Capital Stock (Tables)

12 Months Ended

Dec. 31, 2022

Equity [Abstract]

Schedule Components of Issued, Repurchased and Outstanding Shares

At December 31, 2022, we had 12 billion shares of authorized common stock; issued, repurchased and outstanding shares of common stock consisted of the following:

	Shares Issued	Shares Repurchased	Shares Outstanding
Balances, December 31, 2019	2,805,961,317	(947,979,763)	1,857,981,554
Stock award activity	—	437,611	437,611
Balances, December 31, 2020	2,805,961,317	(947,542,152)	1,858,419,165
Stock award activity	—	412,569	412,569
Repurchases of common stock	—	(35,656,116)	(35,656,116)
Balances, December 31, 2021	2,805,961,317	(982,785,699)	1,823,175,618
Stock award activity	—	514,816	514,816
Repurchases of common stock	—	(38,156,312)	(38,156,312)
Balances, December 31, 2022	2,805,961,317	(1,020,427,195)	1,785,534,122

Share Repurchases

Our total share repurchase activity was as follows for the years ending December 31:

	January 2021 Share Repurchase Program
(in millions, except per share data)	2022		2021		Total
Total number of shares repurchased	38.1		35.7		73.8
Aggregate cost of shares repurchased	$	1,825	$	1,675	$	3,500
Average price per share of shares repurchased	$	47.83	$	46.97	$	47.42