Statutory Information and Restrictions - Net Gain (Loss) from Operations, Net Income (Loss), Dividends to LNC Holding Company (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Insurance [Abstract] | |||
| U.S. net gain (loss) from operations, after-tax | $ (3,177) | $ (2,484) | $ 1,730 |
| U.S. net income (loss) | (2,268) | (2,916) | 1,991 |
| U.S. cash dividends to LNC holding company | $ 491 | $ 510 | $ 667 |