| Components of comprehensive income (loss), net of tax |
Changes in each component for the three and nine months ended September 30, 2022 and 2021 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2022 (Millions), net of tax | | Net Unrealized
Gains (Losses) on
Debt Securities | | Foreign Currency Translation Adjustment Gains (Losses), net of hedges (a) | | Net Unrealized
Pension and Other
Postretirement
Benefit Gains
(Losses) | | Accumulated Other
Comprehensive
Income (Loss) | | Balances as of June 30, 2022 | | $ | (30) | | | $ | (2,569) | | | $ | (544) | | | $ | (3,143) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change | | (39) | | | (200) | | | 5 | | | (234) | | | Balances as of September 30, 2022 | | $ | (69) | | | $ | (2,769) | | | $ | (539) | | | $ | (3,377) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2022 (Millions), net of tax | | Net Unrealized
Gains (Losses) on
Debt Securities | | Foreign Currency Translation Adjustment Gains (Losses), net of hedges (a) | | Net Unrealized
Pension and Other
Postretirement
Benefit Gains
(Losses) | | Accumulated Other
Comprehensive
Income (Loss) | | Balances as of December 31, 2021 | | $ | 23 | | | $ | (2,392) | | | $ | (576) | | | $ | (2,945) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change | | (92) | | | (377) | | | 37 | | | (432) | | | Balances as of September 30, 2022 | | $ | (69) | | | $ | (2,769) | | | $ | (539) | | | $ | (3,377) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2021 (Millions), net of tax | | Net Unrealized Gains (Losses) on Debt Securities | | Foreign Currency Translation Adjustment Gains (Losses), net of hedges (a) | | Net Unrealized
Pension and Other
Postretirement
Benefit Gains (Losses) | | Accumulated Other Comprehensive Income (Loss) | | Balances as of June 30, 2021 | | $ | 42 | | | $ | (2,227) | | | $ | (696) | | | $ | (2,881) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change | | (8) | | | (83) | | | 9 | | | (82) | | | Balances as of September 30, 2021 | | $ | 34 | | | $ | (2,310) | | | $ | (687) | | | $ | (2,963) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2021 (Millions), net of tax | | Net Unrealized Gains (Losses) on Debt Securities | | Foreign Currency Translation Adjustment Gains (Losses), net of hedges (a) | | Net Unrealized
Pension and Other
Postretirement
Benefit Gains (Losses) | | Accumulated Other Comprehensive Income (Loss) | | Balances as of December 31, 2020 | | $ | 65 | | | $ | (2,229) | | | $ | (731) | | | $ | (2,895) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net change | | (31) | | | (81) | | | 44 | | | (68) | | | Balances as of September 30, 2021 | | $ | 34 | | | $ | (2,310) | | | $ | (687) | | | $ | (2,963) | |
(a)Refer to Note 8 for additional information on hedging activity.
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