Consolidated Statements of Stockholders' (Deficit) Equity - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital	Retained Earnings	AOCI Attributable to Parent	Treasury Stock
Treasury stock, shares						48,800,000
Beginning balance at Dec. 31, 2020	$ (17,100,000)	$ 900,000	$ 1,113,200,000	$ 2,385,800,000	$ (97,200,000)	$ (3,419,800,000)
Net income	254,200,000			254,200,000
Dividends, Common Stock, Cash	(63,400,000)			(63,400,000)
Foreign currency translation adjustments	1,600,000				1,600,000
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(3,400,000)				(3,400,000)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	17,500,000		17,500,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	5,900,000				5,900,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	20,600,000
Stock Issued During Period, Value, Treasury Stock Reissued	(1,600,000)		(1,800,000)			$ (3,400,000)
Stock Issued During Period, Shares, Treasury Stock Reissued						(100,000)
Treasury Stock, Shares, Acquired						(1,300,000)
Treasury Stock, Value, Acquired, Cost Method	(410,200,000)					$ (410,200,000)
Ending balance at Jun. 30, 2021	(213,300,000)	900,000	1,128,900,000	2,576,600,000	(93,100,000)	$ (3,826,600,000)
Dividends	1.69
Change in cash flow hedges, tax expense	1,200,000
Pension and post-retirement liability changes, tax expense	3,200,000
Treasury stock, shares						49,400,000
Beginning balance at Mar. 31, 2021	(160,700,000)	900,000	1,090,300,000	2,440,900,000	(99,200,000)	$ (3,593,600,000)
Net income	170,000,000.0			170,000,000.0
Dividends, Common Stock, Cash	(34,300,000)			(34,300,000)
Foreign currency translation adjustments	4,200,000				4,200,000
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	100,000				100,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	8,900,000		8,900,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	1,800,000				1,800,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	11,000,000.0
Stock Issued During Period, Value, Treasury Stock Reissued	(900,000)		(300,000)			$ (1,200,000)
Stock Issued During Period, Shares, Treasury Stock Reissued						(100,000)
Treasury Stock, Shares, Acquired						(700,000)
Treasury Stock, Value, Acquired, Cost Method	(204,200,000)		30,000,000.0			$ (234,200,000)
Ending balance at Jun. 30, 2021	(213,300,000)	900,000	1,128,900,000	2,576,600,000	(93,100,000)	$ (3,826,600,000)
Dividends	0.92
Change in cash flow hedges, tax expense	100,000
Pension and post-retirement liability changes, tax expense	$ 300,000
Treasury stock, shares						50,000,000.0
Treasury stock, shares	50,536,125					50,500,000
Beginning balance at Dec. 31, 2021	$ (269,000,000.0)	900,000	1,133,700,000	2,719,300,000	(88,100,000)	$ (4,034,800,000)
Net income	260,800,000			260,800,000
Dividends, Common Stock, Cash	(70,600,000)			(70,600,000)
Foreign currency translation adjustments	(9,100,000)				(9,100,000)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	700,000				700,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	10,600,000		10,600,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(21,400,000)				(21,400,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	(11,300,000)
Stock Issued During Period, Value, Treasury Stock Reissued	(1,800,000)		(300,000)			$ (2,100,000)
Stock Issued During Period, Shares, Treasury Stock Reissued						(100,000)
Treasury Stock, Shares, Acquired						(1,300,000)
Treasury Stock, Value, Acquired, Cost Method	(305,100,000)					$ (305,100,000)
Ending balance at Jun. 30, 2022	(401,300,000)	900,000	1,144,000,000	2,909,500,000	(117,900,000)	$ (4,337,800,000)
Dividends	1.98
Change in cash flow hedges, tax expense	6,200,000
Pension and post-retirement liability changes, tax expense	600,000
Treasury stock, shares						51,100,000
Beginning balance at Mar. 31, 2022	(410,200,000)	900,000	1,110,400,000	2,769,800,000	(80,500,000)	$ (4,210,800,000)
Net income	177,200,000			177,200,000
Dividends, Common Stock, Cash	(37,500,000)			(37,500,000)
Foreign currency translation adjustments	(7,900,000)				(7,900,000)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	300,000				300,000
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	700,000				700,000
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	5,900,000		5,900,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(30,500,000)				(30,500,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	(30,900,000)
Stock Issued During Period, Value, Treasury Stock Reissued	(900,000)		(700,000)			$ (200,000)
Stock Issued During Period, Shares, Treasury Stock Reissued						0
Treasury Stock, Shares, Acquired						(600,000)
Treasury Stock, Value, Acquired, Cost Method	(100,200,000)		27,000,000.0			$ (127,200,000)
Ending balance at Jun. 30, 2022	(401,300,000)	$ 900,000	$ 1,144,000,000	$ 2,909,500,000	$ (117,900,000)	$ (4,337,800,000)
Dividends	1.06
Change in cash flow hedges, tax expense	9,200,000
Pension and post-retirement liability changes, tax expense	$ 200,000
Treasury stock, shares	51,743,384					51,700,000
Stock repurchase program, authorized amount	$ 4,000,000,000