Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company's effective tax rate for the three months ended June 30, 2020 and 2019 was 21.3% and 24.5%, respectively, and 22.4% and 24.5% for the six months ended June 30, 2020 and 2019, respectively. The effective tax rate included discrete income tax benefits related to excess tax benefits from stock-based compensation of $5 million and $4 million for the three months ended June 30, 2020 and 2019, respectively, and $12 million and $9 million for the six months ended June 30, 2020 and 2019, respectively. The Company and its subsidiaries file tax returns in the U.S. and various state, local and foreign jurisdictions. These tax returns are routinely audited by the tax authorities in these jurisdictions, including the Internal Revenue Service ("IRS"), Her Majesty's Revenue and Customs, German Fiscal Authority, French Fiscal Authority, and Australian Tax Office, and a number of these audits are currently ongoing, which may increase the amount of the unrecognized tax benefits in future periods. Due to the ongoing audits, the Company believes it is reasonably possible that within the next twelve months the amount of the Company's unrecognized tax benefits may be decreased by approximately $40 million related predominantly to various intercompany transactions. The Company has recorded its best estimate of the potential exposure for these issues.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.