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Common Stock Repurchase Program - Repurchases (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
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Oct. 31, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Common stock repurchase program |  |  |  |  |
Authorized share repurchases |  |  |  | $ 437 |
Cash paid for repurchase of common stock |  |  |  | 1,061 | $ 1,000
Accelerated Share Repurchase Agreement (ASR) [Member] |  |  |  |  |
Common stock repurchase program |  |  |  |  |
Cash paid for repurchase of common stock |  |  | $ 350 | $ 1,000 |
Shares repurchased (in shares) |  | 0.4 | 1.7 | 6.3 |
Initial stock repurchase price (in dollars per share) |  |  | $ 160.67 |  |
Weighted average final purchase price (in dollars per share) |  | $ 160.33 |  | $ 160.56 |
10b5-1 Plan [Member] |  |  |  |  |
Common stock repurchase program |  |  |  |  |
Cash paid for repurchase of common stock | $ 2 |  |  | $ 63 |
Shares repurchased (in shares) |  |  |  | 0.4 |
Weighted average final purchase price (in dollars per share) |  |  |  | $ 151.30 |

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- Definition Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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- Definition The price paid per share to immediately purchase the targeted number of shares on the date of executing the accelerated share repurchase agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
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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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