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, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Insurance [Abstract] | |||
| U.S. net gain (loss) from operations, after-tax | $ (1,824) | $ (3,192) | $ (2,495) |
| U.S. net income (loss) | (181) | (2,283) | (2,924) |
| U.S. cash dividends to LNC | $ 685 | $ 491 | $ 495 |