Equity (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Aug. 02, 2022	Feb. 02, 2022
Equity, Class of Treasury Stock [Line Items]
Stock repurchase plan remaining authorized amount		$ 3,330
Number of shares repurchased		131,000,000	76,000,000	0
Cash paid for shares repurchased		$ 11,922	$ 4,654	$ 0
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	830,000
Cash paid for shares repurchased	$ 96
Share Repurchase Authorization February 2022
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount						$ 5,000
Share Repurchase Authorization August 2022
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 5,000