Stockholders' Equity - Stock Repurchases (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2021
Stockholders' Equity Note [Abstract]
Common stock authorized to be repurchased		$ 5,000
Stock repurchased (in shares)	1,222,056
Repurchases of common stock to be held as treasury stock	$ 400
Remaining authorized repurchase amount	$ 4,000

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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