| Revenue | $2.6B | $2.8B | $3B | $3.1B | $3.2B | $3.4B | $3.6B | $3.8B |
| Revenue recognized that was included in deferred income at the beginning of the period | — | — | — | $2.6B | — | — | — | $3.2B |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | -$137M | -$292M | -$471M | -$398M | -$546M | -$657M | -$739M | -$2.2B |
| Treasury stock, value, acquired | $0 | $225M | $296M | $298M | $361M | $584M | $597M | $2.2B |
| Payments for Repurchase of Common Stock | $0 | $225M | $296M | $298M | $361M | $584M | $597M | $2.2B |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $620M | $671M | $1.6B | $1.7B | $716M | $813M | $2.2B | $1.7B |
| Payments to Acquire Businesses, Net of Cash Acquired | $31M | $41M | $31M | $18M | $58M | $139M | $869M | $1.3B |
| Proceeds from sales and redemptions of investments in debt securities classified as available for sale | $1B | $911M | $728M | $1.2B | $1.1B | $1.1B | $728M | $1.1B |
| Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation | $101.5M | $101.5M | $101.5M | $1.1B | — | — | — | -$1B |
| Goodwill Additions | — | — | $17M | — | — | $39M | $1.8B | $977M |
| Increase Decrease In Receivables | — | — | — | -$901M | — | — | — | -$912M |
| Share-based compensation expense related to employee stock plans | $444M | $426M | $454M | $470M | $499M | $492M | $494M | $547M |
| Stock-based compensation | $444M | $426M | $454M | $470M | $499M | $492M | $494M | $547M |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent | $252M | $490M | $336M | $458M | $406M | $534M | $437M | $457M |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | -$371M | -$658M | -$738M | -$217M | -$423M | -$551M | -$498M | -$451M |
| Increase in accrued expenses and other liabilities | $149M | -$125M | $323M | -$287M | $176M | -$100M | $460M | -$439M |
| Undiscounted cash flows | — | — | — | $95.3M | $95.3M | $95.3M | $95.3M | $341M |
| Increase (decrease) in contract liabilities and current deferred income | -$82M | -$263M | $1.5B | -$148M | -$116M | -$449M | $1.9B | -$278M |
| Accounts payable | $65M | -$130M | -$94M | $234M | — | — | $7M | $250M |
| Increase (Decrease) in Deferred Charges | $141M | $155M | $252M | $155M | $136M | $171M | $296M | $195M |
| Amortization of deferred commissions | $132M | $140M | $147M | $145M | $148M | $161M | $167M | $168M |
| Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation | $137M | $173M | $175M | $253M | $185M | $190M | $142M | $164M |
| Payment, Tax Withholding, Share-Based Payment Arrangement | $137M | $173M | $175M | $253M | $185M | $190M | $142M | $164M |
| Proceeds from issuance of common stock relating to employee stock plans | — | $106M | — | $153M | — | $117M | — | $153M |
| Issuance of common stock in connection with the Spin-Off and reclassification of net parent investment | $0 | $106M | $0 | $153M | $0 | $117M | $0 | $153M |
| Depreciation | $88M | $96M | $107M | $112M | $120M | $133M | $143M | $148M |
| Payments to Acquire Property, Plant, and Equipment | $262M | $202M | $253M | $205M | $190M | $235M | $238M | $141M |
| Payments To Acquire Non-Marketable Investments | $46M | $61M | $32M | $4M | $134M | — | — | $121M |
| Increase (Decrease) in Deferred Income Taxes | -$24M | $0 | -$51M | -$32M | -$16M | -$124M | -$77M | -$102M |
| Capital investments accrued but not yet paid | — | — | $6M | $56M | — | $26M | $88M | $100M |
| Interest income | $104M | $108M | $106M | $115M | $116M | $115M | $105M | $88M |
| Other income, net (Note 6) | -$10M | -$10M | -$17M | -$11M | -$3M | $7M | -$7M | $82M |
| All other operating activities | -$7M | -$6M | -$20M | $4M | $58M | — | $61M | -$82M |
| Amortization of capitalized software and acquired intangible assets | $24M | $23M | $23M | $21M | $25M | $33M | $41M | $77M |
| Right Of Use Asset Obtained In Exchange For Operating Lease Liability | $3M | $7M | $63M | $141M | $32M | $22M | $30M | $61M |
| Number of additional shares authorized under the plan (in shares) | — | — | 10M | 10M | — | — | 50M | 50M |
| Net gains (losses) deferred | $10M | -$52M | $80M | -$52M | -$99M | $36M | — | $43M |
| Increase (Decrease) in Prepaid Expense and Other Assets | $146M | $15M | $65M | $139M | $83M | $0 | $185M | $42M |
| Income Taxes Paid, Net | $91M | $71M | $47M | $36M | $93M | $52M | $102M | $38M |
| Foreign currency translation gains (losses) | -$17M | $50M | -$96M | $36M | $115M | -$11M | $8M | -$35M |
| Payments to Acquire Investments | $1.1B | $1.3B | $1.1B | $1.1B | $1.2B | $397M | $95M | $31M |
| Operating Lease Payments | $22M | $20M | $24M | $24M | $29M | $27M | $27M | $29M |
| Payment for (Proceeds from) Other Investing Activity | $8M | -$27M | $61M | -$3M | -$41M | — | -$12M | -$28M |
| Stock options excluded as their inclusion would be anti-dilutive (in shares) | 2.9M | 1.1M | 3.6M | 11.5M | 2.4M | 2.4M | 10.8M | 23.3M |
| Net unrealized gains (losses) on securities still held | -$3M | $60M | — | $14M | $5M | $7M | $1M | -$20M |
| Foreign Currency Translation and Other Adjustments | — | — | -$35M | — | — | $3M | $6M | -$14M |
| Other comprehensive income (loss) | -$10M | $58M | -$48M | -$2M | $21M | $32M | $36M | -$12M |
| Interest Paid, Excluding Capitalized Interest, Operating Activity | $1M | $11M | $0 | $11M | — | $11M | — | $11M |
| Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 | $34M | $1M | $57M | $26M | — | — | — | $9M |
| Effect of exchange rate changes on cash, cash equivalents and restricted cash | -$4.3M | -$4.3M | -$4.3M | $5M | — | — | — | -$5M |
| Add - Incremental shares under stock-based compensation plans (in shares) | — | — | 12.9M | 12.8M | — | — | 10M | 4.7M |
| New issues (in shares) | — | — | 12.8M | 4M | — | — | 11.9M | 4.2M |
| Equity awards assumed in business combinations | — | — | — | $1M | $1M | $1M | $1M | $4M |
| Intrinsic value of stock options exercised | $1M | $31M | $1M | $1M | $0 | $10M | $1M | $1M |
| Granted (in shares) | — | — | 0 | 0 | — | — | 426K | 402K |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period | — | — | 128K | — | — | — | 157K | 22K |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period | — | — | 74K | 2K | — | — | 179K | 9K |
| Weighted-average grant date fair value of stock options (in dollars per share) | — | — | — | — | — | — | $133.64 | $92.12 |
| Exercised (in shares) | — | — | $324.80 | $84.81 | — | — | $116.60 | $21.05 |
| Options canceled (in dollars per share) | — | — | $645.02 | — | — | — | $131.10 | $20.56 |
| Granted (in shares) | — | — | — | — | — | — | $20.34 | $18.54 |
| Number of equity incentive plans | — | — | — | 3.00 | — | — | — | 3.00 |
| Advertising costs | $73.8M | $73.8M | $73.8M | $87M | $87M | $87M | $87M | — |
| Pre-tax stock-based compensation cost | $436.5M | $436.5M | $436.5M | $488.8M | $488.8M | $488.8M | $488.8M | — |
| Federal | $9M | $9M | $9M | $9M | $9M | $9M | $9M | — |
| Foreign | $32.5M | $32.5M | $32.5M | $45.8M | $45.8M | $45.8M | $45.8M | — |
| Federal | $12.8M | $12.8M | $12.8M | $42.3M | $42.3M | $42.3M | $42.3M | — |
| Deferred taxes | $24.5M | $24.5M | $24.5M | $62.8M | $62.8M | $62.8M | $62.8M | — |
| State | -$1.3M | -$1.3M | -$1.3M | $6.3M | $6.3M | $6.3M | $6.3M | — |
| Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent | — | — | -0.2% | — | — | — | 0.1% | — |
| Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount | $1.5M | $1.5M | $1.5M | $250K | $250K | $250K | $250K | — |
| Other | — | — | 0.3% | — | — | — | 0.1% | — |
| Global Intangible Low-taxed Income, net of credits | -$7.3M | -$7.3M | -$7.3M | -$5.5M | -$5.5M | -$5.5M | -$5.5M | — |
| Global Intangible Low-taxed Income, net of credits | — | — | -1.6% | — | — | — | -1.0% | — |
| Other | — | — | 0.8% | — | — | — | 1.3% | — |
| Acquisition-related effects | -$1.3M | -$1.3M | -$1.3M | $7.3M | $7.3M | $7.3M | $7.3M | — |
| Officer’s compensation | $7M | $7M | $7M | $8M | $8M | $8M | $8M | — |
| Officer’s compensation | — | — | 1.6% | — | — | — | 1.4% | — |
| Share-based compensation | — | — | -4.5% | — | — | — | -2.9% | — |
| Acquisition-related effects | — | — | -0.3% | — | — | — | 1.3% | — |
| State income taxes – net of federal income tax benefit | $0 | $0 | $0 | $0 | $0 | $0 | $0 | — |
| Changes in unrecognized tax benefits | — | — | 0.2% | — | — | — | 0.5% | — |
| Share-Based Payment Arrangement, Expense, Tax Benefit | $85M | $85M | $85M | $91.3M | $91.3M | $91.3M | $91.3M | — |
| Federal taxes | $16M | $16M | $16M | $11.5M | $11.5M | $11.5M | $11.5M | — |
| Foreign | $27.8M | $27.8M | $27.8M | $38.5M | $38.5M | $38.5M | $38.5M | — |
| State taxes | $13.8M | $13.8M | $13.8M | $20.8M | $20.8M | $20.8M | $20.8M | — |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | $91.3M | $91.3M | $91.3M | $118.8M | $118.8M | $118.8M | $118.8M | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | $3.3M | $3.3M | $3.3M | $7.3M | $7.3M | $7.3M | $7.3M | — |
| Share-based compensation | -$19.5M | -$19.5M | -$19.5M | -$16.5M | -$16.5M | -$16.5M | -$16.5M | — |
| Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | $500K | $500K | $500K | -$500K | -$500K | -$500K | -$500K | — |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | $8.3M | $8.3M | $8.3M | $12.8M | $12.8M | $12.8M | $12.8M | — |
| Changes in unrecognized tax benefits | $750K | $750K | $750K | $2.8M | $2.8M | $2.8M | $2.8M | — |
| Number of operating segments | 0.25 | 0.25 | 0.25 | 1.00 | — | — | — | — |
| Number of reportable segments | 0.25 | 0.25 | 0.25 | 1.00 | — | — | — | — |
| Other comprehensive income/(loss) before reclassifications | -$4.3M | -$4.3M | -$4.3M | $11.3M | $11.3M | $11.3M | $11.3M | — |
| Other comprehensive income/(loss) | -$7.8M | -$7.8M | -$7.8M | $21.8M | $21.8M | $21.8M | $21.8M | — |
| Payments to Acquire Intangible Assets | $9M | $0 | $10M | $34M | — | $9M | — | $0 |
| Percentage of U.S. revenues in North America | — | — | 94.0% | — | — | — | 94.0% | — |
| Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | $3.5M | $3.5M | $3.5M | -$10.5M | -$10.5M | -$10.5M | -$10.5M | — |
| Weighted-average dividend yield | — | — | 0.0% | — | — | — | 0.0% | — |
| Stock split, conversion ratio (in shares) | — | — | — | — | — | — | 500.0% | — |
| Supply chain finance program, payments | — | — | — | $41M | $41M | $41M | $41M | — |
| Invoices confirmed during the period | — | — | — | $62.8M | $62.8M | $62.8M | $62.8M | — |
| Number of shares purchased (in shares) | 0 | 300K | 4M | 1.6M | 400K | 600K | 10.3M | — |
| Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions | $500K | $500K | $500K | $750K | $750K | $750K | $750K | — |
| Unrecognized tax benefits, settlements | $750K | $750K | $750K | $0 | $0 | $0 | $0 | — |
| Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions | $18.3M | $18.3M | $18.3M | $29M | $29M | $29M | $29M | — |
| Additions for tax positions of prior years | $500K | $500K | $500K | $0 | $0 | $0 | $0 | — |
