Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($)		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Cash and cash equivalents reclassified to other receivables		$ (1,304,700,000)	$ (294,000,000)	[1]
Increase in operating cash flow	[1]	332,500,000	468,400,000
Payments of borrowings included within investing activities		755,200,000
Total payment of borrowings		1,100,000,000
Tax payments related to sale of business		33,000,000
ASR program
Stock repurchase program, authorized amount		400,000,000
Value of shares repurchased		$ 320,000,000
Restatement Adjustment | Changes in the accounting treatment of a factoring agreement
Cash and cash equivalents reclassified to other receivables			8,700,000
Increase in operating cash flow			$ 2,000,000

[1] Due to changes in the accounting treatment of a factoring agreement the Company reclassified amounts from cash and cash equivalents to other receivables of $8.7 million as of September 30, 2016. This reclassification resulted in an increase in cash provided by operating activities of $2.0 million for the nine months ended September 30, 2016.