Weighted Average Shares Outstanding (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 14, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted Average Number of Shares Outstanding, Basic	1,429,700	1,421,300	1,428,800	1,420,000
Weighted Average Number Diluted Shares Outstanding Adjustment	8,100	11,200	9,300	11,700
Weighted Average Number of Shares Outstanding, Diluted	1,437,800	1,432,500	1,438,100	1,431,700
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	1,000,000,000	1,000,000,000	4,000,000,000	5,000,000,000
Stock Repurchase Program, Authorized Amount					$ 1,000
Share-based Payment Arrangement, Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	7,000	3,000	6,000	6,000
5.50% MCPS, Series A [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	24,000	24,000	24,000	24,000