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Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Contingency [Line Items] |  |  |
Income, United States | $ 2,534 | $ 2,782 | $ 4,165
Income, Foreign | 4,599 | 3,685 | 4,547
Income from continuing operations before income taxes | 7,133 | 6,467 | 8,712
Undistributed Earnings of Foreign Subsidiaries | 31,000 |  |
Current Tax Provision, Federal | 30 | 328 | 319
Current Tax Provision, State | (21) | (37) | 38
Current Tax Provision, Foreign | 1,290 | 1,158 | 1,484
Current Income Tax Expense Benefit | 1,299 | 1,449 | 1,841
Future Tax Provision, Federal | 318 | 712 | 421
Future Tax Provision, State | 134 | 109 | (23)
Future Tax Provision, Foreign | (54) | (159) | 5
Deferred income tax provision | 398 | 662 | 403
Income tax expense | 1,697 | 2,111 | 2,244
Attributable to items credited (charged) to equity and goodwill | $ (299) | $ (114) | $ 1,535
Statutory U.S. federal income tax rate | 35.00% | 35.00% | 35.00%
Tax on international activities | (8.10%) | (2.00%) | (3.30%)
Tax audit settlements | (2.90%) | 0.00% | (4.30%)
Other | (0.20%) | (0.40%) | (1.60%)
Effective income tax rate | 23.80% | 32.60% | 25.80%
Tax Adjustments Settlements And Unusual Provisions |  |  | $ 371
Income Tax Credits and Adjustments |  | $ 68 |
2011 - 2012 Tax Years [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Tax Adjustments Settlements And Unusual Provisions | $ 206 |  |
French Tax Law Change [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Income Tax Credits and Adjustments | $ 25 |  |
Foreign Earnings Repatriation [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Other Information Pertaining To Income Taxes, Monetary |  | 274 |
2015 Tax Year [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Other Information Pertaining To Income Taxes, Monetary |  | $ 45 |
Dividend Repatriation [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Other Information Pertaining To Income Taxes, Monetary |  |  | 175
1998 Reorganization Otis Germany [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Other Information Pertaining To Income Taxes, Monetary |  |  | $ 265

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