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Capital Stock, Accumulated Other Comprehensive Loss and Equity - Narrative (Details) | 3 Months Ended | 12 Months Ended | 144 Months Ended
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Dec. 31, 2022 USD ($) vote $ / shares shares | Oct. 01, 2022 $ / shares | Jul. 02, 2022 $ / shares | Apr. 02, 2022 $ / shares | Dec. 31, 2021 USD ($) $ / shares shares | Oct. 02, 2021 $ / shares | Jul. 03, 2021 $ / shares | Apr. 03, 2021 $ / shares | Dec. 31, 2020 USD ($) $ / shares | Apr. 04, 2020 $ / shares | Dec. 31, 2022 USD ($) vote $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares | Dec. 31, 2022 USD ($) vote $ / shares shares
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) | shares | 300,000,000 |  |  |  | 300,000,000 |  |  |  |  |  | 300,000,000 | 300,000,000 |  | 300,000,000
Common stock holders voting right, vote per outstanding share | vote | 1 |  |  |  |  |  |  |  |  |  | 1 |  |  | 1
Common stock, aggregate authorized repurchase amount | $ 6,100,000,000 |  |  |  |  |  |  |  |  |  | $ 6,100,000,000 |  |  | $ 6,100,000,000
Aggregate Repurchases |  |  |  |  |  |  |  |  |  |  | $ 100,300,000 | $ 100,300,000 | $ 70,000,000.0 | $ 4,900,000,000
Repurchases of shares of common stock, average price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 131.37 | $ 170.03 | $ 109.22 | $ 91.55
Remaining repurchase authorization | $ 1,200,000,000 |  |  |  |  |  |  |  |  |  | $ 1,200,000,000 |  |  | $ 1,200,000,000
Cash dividends declared (in dollars per share) | $ / shares | $ 0.77 | $ 0.77 | $ 0.77 | $ 0.77 | $ 0.77 | $ 0.50 | $ 0.25 | $ 0.25 | $ 0.25 | $ 0.77 |  |  |  |
Pretax loss related to intercompany transactions for which settlement is not planned or anticipated in the foreseeable future |  |  |  |  |  |  |  |  |  |  | 2,600,000 | $ 400,000 | $ 600,000 |
Derivatives net investment hedge foreign currency translation | $ 25,300,000 |  |  |  | $ 17,900,000 |  |  |  | $ (18,300,000) |  | 25,300,000 | 17,900,000 | $ (18,300,000) | 25,300,000
Aggregate investment in affiliates | $ 196,700,000 |  |  |  | $ 184,700,000 |  |  |  |  |  | $ 196,700,000 | $ 184,700,000 |  | $ 196,700,000
Shenyang Lear Automotive Seating and Interior Systems Co., Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage of affiliates |  |  |  |  | 49.00% |  |  |  |  |  |  | 49.00% |  |
Proceeds from sale of equity method investments |  |  |  |  |  |  |  |  |  |  |  | $ 36,200,000 |  |
Aggregate investment in affiliates |  |  |  |  | $ 7,600,000 |  |  |  |  |  |  | $ 7,600,000 |  |
Shanghai Lear STEC Automotive Parts Co., Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage by noncontrolling owners |  |  |  |  |  |  |  |  | 45.00% |  |  |  | 45.00% |
Payments for repurchase of redeemable noncontrolling interest |  |  |  |  |  |  |  |  | $ 95,500,000 |  |  |  |  |
Retained earnings, undistributed earnings |  |  |  |  |  |  |  |  | $ 26,800,000 |  |  |  | $ 26,800,000 |

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