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Reconciliation of Income Tax Expense Computed Using U.S. Statutory Federal Tax Rate to Actual Income Tax Expense (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Reconciliation Of Income Taxes [Line Items] |  |  |
Income tax expense at the U.S. federal statutory tax rate | $ 1,710 | $ 1,505 | $ 1,637
Adoption of stock-based compensation ASU | (152) |  |
U.S. manufacturing deduction benefit | (117) | (123) | (124)
Research and development tax credit | (107) | (70) | (63)
Tax deductible dividends | (92) | (87) | (82)
Other, net | (109) | (52) | 56
Total income tax expense | $ 1,133 | $ 1,173 | $ 1,424
Income tax expense at the U.S. federal statutory tax rate | 35.00% | 35.00% | 35.00%
Adoption of stock-based compensation ASU, rate | (3.10%) |  |
U.S. manufacturing deduction benefit, rate | (2.40%) | (2.90%) | (2.60%)
Research and development tax credit, rate | (2.20%) | (1.60%) | (1.30%)
Tax deductible dividends, rate | (1.90%) | (2.00%) | (1.80%)
Other, net, rate | (2.20%) | (1.20%) | 1.10%
Total Income tax expense, rate | 23.20% | 27.30% | 30.40%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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