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v3.23.1

Condensed Consolidated Statements of Changes in Common Shareholders' Equity (Unaudited) - USD ($) $ in Millions | Common Stock [Member] | Treasury Stock, Common [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2021 |  | 1,112,400,000 | (473,600,000) |  |  |  |  |  |
Balance at Dec. 31, 2021 |  | $ 2,781 | $ (47,734) | $ 4,979 | $ 55,049 | $ (914) | [1] | $ 14,161 |
Net income |  | 0 | 0 | 0 | 1,630 | 0 | [1] | 1,630 |
Other comprehensive income/(loss) |  | $ 0 | $ 0 | 0 | 0 | 36 | [1] | 36 | [2]
Conversion, stock option exercises, forfeitures, ESPP, and other [b] (in shares) |  | 200,000 | 200,000 |  |  |  |  |  |
Conversion, stock option exercises, forfeitures, ESPP, and other [b] | [3] | $ 1 | $ (28) | 32 | 0 | 0 |  | $ 5 |
Share repurchase programs (Note 14) (in shares) |  | 0 | (11,000,000.0) |  |  |  |  | (11,014,201) | [4]
Share repurchase programs (Note 14) |  | $ 0 | $ (2,753) | (440) | 0 | 0 | [1] | $ (3,193) |
Dividends declared |  | $ 0 | $ 0 | 0 | (742) | 0 |  | (742) |
Balance (in shares) at Mar. 31, 2022 |  | 1,112,600,000 | (484,400,000) |  |  |  |  |  |
Balance at Mar. 31, 2022 |  | $ 2,782 | $ (50,515) | 4,571 | 55,937 | (878) | [1] | $ 11,897 |
Share repurchase programs (Note 14) (in shares) |  |  |  |  |  |  |  | (19,000,000.0) |
Balance (in shares) at Mar. 31, 2023 |  | 1,112,900,000 | (503,000,000.0) |  |  |  |  |  |
Balance at Mar. 31, 2023 |  | $ 2,782 | $ (54,591) | 5,099 | 59,724 | (560) | [1] | $ 12,454 |
Balance (in shares) at Dec. 31, 2022 |  | 1,112,600,000 | (500,200,000) |  |  |  |  |  |
Balance at Dec. 31, 2022 |  | $ 2,782 | $ (54,004) | 5,080 | 58,887 | (582) | [1] | 12,163 |
Net income |  | 0 | 0 | 0 | 1,630 | 0 | [1] | 1,630 |
Other comprehensive income/(loss) |  | $ 0 | $ 0 | 0 | 0 | 22 | [1] | 22 | [2]
Conversion, stock option exercises, forfeitures, ESPP, and other [b] (in shares) |  | 300,000 | 100,000 |  |  |  |  |  |
Conversion, stock option exercises, forfeitures, ESPP, and other [b] | [3] | $ 0 | $ 4 | 19 | 0 | 0 |  | $ 23 |
Share repurchase programs (Note 14) (in shares) |  | 0 | (2,900,000) |  |  |  |  | (2,908,703) |
Share repurchase programs (Note 14) |  | $ 0 | $ (591) | 0 | 0 | 0 | [1] | $ (591) |
Dividends declared |  | $ 0 | $ 0 | 0 | (793) | 0 |  | (793) |
Balance (in shares) at Mar. 31, 2023 |  | 1,112,900,000 | (503,000,000.0) |  |  |  |  |  |
Balance at Mar. 31, 2023 |  | $ 2,782 | $ (54,591) | $ 5,099 | $ 59,724 | $ (560) | [1] | $ 12,454 |
[1] | AOCI = Accumulated Other Comprehensive Income/Loss (Note 7)
[2] | Net of deferred taxes of ($0) million and ($5) million during the three months ended March 31, 2023 and 2022, respectively.
[3] | ESPP = employee stock purchase plan (Note 3)
[4] | Includes 7,012,232 shares repurchased in 2022 under accelerated share repurchase programs.

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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration