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Equity - Accelerated Share Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Cash Utilized | $ 8,503 | $ 0
2020 Repurchase Program |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total Cash Utilized | $ 8,500 |
2020 Repurchase Program | Uncapped ASR, May 2022 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Average Price Paid Per Share (USD per share) | $ 336.85 |
Total Cash Utilized | $ 1,500 |
Accelerated share repurchases initial delivery percentage (as a percent) | 85.00% |
2020 Repurchase Program | Uncapped ASR, May 2022 | Initial Shares Delivered |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 3.8 |
2020 Repurchase Program | Uncapped ASR, May 2022 | Additional Shares Delivered |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 0.0 |
2020 Repurchase Program | Uncapped ASR, May 2022 | Total Number of Shares Purchased |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 3.8 |
2020 Repurchase Program | Uncapped ASR, March 2022 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Average Price Paid Per Share (USD per share) | $ 390.58 |
Total Cash Utilized | $ 7,000 |
Accelerated share repurchases initial delivery percentage (as a percent) | 85.00% |
2020 Repurchase Program | Uncapped ASR, March 2022 | Initial Shares Delivered |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 15.2 |
2020 Repurchase Program | Uncapped ASR, March 2022 | Additional Shares Delivered |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 0.0 |
2020 Repurchase Program | Uncapped ASR, March 2022 | Total Number of Shares Purchased |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares Delivered and Purchased (shares) | 15.2 |

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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