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Equity - Dividends and Stock Repurchases (Details) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 28, 2022 $ / shares | Jan. 26, 2022 $ / shares | Jun. 30, 2022 $ / shares shares | Mar. 31, 2022 $ / shares | Jun. 30, 2022 USD ($) transaction shares | Jun. 30, 2021 USD ($) | Jan. 29, 2020 shares | Dec. 04, 2013 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Quarterly dividend rate (USD per share) | $ / shares | $ 0.85 | $ 0.77 | $ 0.85 | $ 0.77 |  |  |  |
Total Cash Utilized | $ |  |  |  |  | $ 8,503 | $ 0 |  |
2020 Repurchase Program |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Authorized for repurchase (shares) |  |  |  |  |  |  | 30,000,000 |
Shares authorized for repurchase, compared to total common stock outstanding (as a percent) |  |  |  |  |  |  | 12.00% |
Remaining shares available under repurchase program (shares) |  |  | 11,700,000 |  | 11,700,000 |  |  |
ARS agreement transactions | transaction |  |  |  |  | 2 |  |  |
Total Cash Utilized | $ |  |  |  |  | $ 8,500 |  |  |
Stock repurchased during period (shares) |  |  |  |  | 19,000,000 |  |  |
2020 Repurchase Program | Uncapped ASR, March 2022 |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Total Cash Utilized | $ |  |  |  |  | $ 7,000 |  |  |
2013 Repurchase Program |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Authorized for repurchase (shares) |  |  |  |  |  |  |  | 50,000,000
Shares authorized for repurchase, compared to total common stock outstanding (as a percent) |  |  |  |  |  |  |  | 18.00%

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