Guarantee of Registered Securities (Tables)

6 Months Ended

Jun. 30, 2015

Guarantee of Registered Securities [Abstract]

Condensed Consolidating Statements of Income

Condensed Consolidating Statement of Income

	Three months ended June 30, 2015
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
Revenue
Commissions, fees and other	$	—		$	—		$	2,800		$	—		$	2,800
Fiduciary investment income	—			—			5			—			5
Total revenue	—			—			2,805			—			2,805
Expenses
Compensation and benefits	5			10			1,638			—			1,653
Other general expenses	(4		)	2			877			—			875
Total operating expenses	1			12			2,515			—			2,528
Operating (loss) income	(1		)	(12		)	290			—			277
Interest income	(5		)	4			5			—			4
Interest expense	(29		)	(33		)	(6		)	—			(68		)
Intercompany interest income (expense)	119			(116		)	(3		)	—			—
Intercompany other (expense) income	(56		)	(15		)	71			—			—
Other income	(1		)	—			2			—			1
(Loss) income before taxes	27			(172		)	359			—			214
Income tax (benefit) expense	6			(66		)	86			—			26
(Loss) income before equity in earnings of subsidiaries	21			(106		)	273			—			188
Equity in earnings of subsidiaries, net of tax	157			170			64			(391		)	—
Net income	178			64			337			(391		)	188
Less: Net income attributable to noncontrolling interests	—			—			10			—			10
Net income attributable to Aon shareholders	$	178		$	64		$	327		$	(391	)	$	178

Condensed Consolidating Statement of Income

	Three months ended June 30, 2014
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
Revenue
Commissions, fees and other	$	—		$	—		$	2,913		$	—		$	2,913
Fiduciary investment income	—			—			6			—			6
Total revenue	—			—			2,919			—			2,919
Expenses
Compensation and benefits	6			6			1,696			—			1,708
Other general expenses	1			3			762			—			766
Total operating expenses	7			9			2,458			—			2,474
Operating (loss) income	(7		)	(9		)	461			—			445
Interest income	(2		)	—			4			—			2
Interest expense	(15		)	(32		)	(18		)	—			(65		)
Intercompany interest income (expense)	111			(73		)	(38		)	—			—
Intercompany other (expense) income	(54		)	(4		)	58			—			—
Other income	(1		)	8			(9		)	—			(2		)
Income (loss) before taxes	32			(110		)	458			—			380
Income tax expense (benefit)	6			(42		)	103			—			67
Income (loss) before equity in earnings of subsidiaries	26			(68		)	355			—			313
Equity in earnings of subsidiaries, net of tax	278			288			220			(786		)	—
Net income	304			220			575			(786		)	313
Less: Net income attributable to noncontrolling interests	—			—			9			—			9
Net income attributable to Aon shareholders	$	304		$	220		$	566		$	(786	)	$	304

Condensed Consolidating Statement of Income

	Six months ended June 30, 2015
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
Revenue
Commissions, fees and other	$	—		$	—		$	5,642		$	—		$	5,642
Fiduciary investment income	—			—			10			—			10
Total revenue	—			—			5,652			—			5,652
Expenses
Compensation and benefits	57			21			3,258			—			3,336
Other general expenses	9			4			1,585			—			1,598
Total operating expenses	66			25			4,843			—			4,934
Operating (loss) income	(66		)	(25		)	809			—			718
Interest income	(9		)	7			9			—			7
Interest expense	(54		)	(68		)	(11		)	—			(133		)
Intercompany interest income (expense)	239			(221		)	(18		)	—			—
Intercompany other (expense) income	(106		)	(23		)	129			—			—
Other income	1			8			34			—			43
(Loss) income before taxes	5			(322		)	952			—			635
Income tax (benefit) expense	1			(117		)	222			—			106
(Loss) income before equity in earnings of subsidiaries	4			(205		)	730			—			529
Equity in earnings of subsidiaries, net of tax	502			571			366			(1,439		)	—
Net income	506			366			1,096			(1,439		)	529
Less: Net income attributable to noncontrolling interests	—			—			23			—			23
Net income attributable to Aon shareholders	$	506		$	366		$	1,073		$	(1,439	)	$	506

Condensed Consolidating Statement of Income

	Six months ended June 30, 2014
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
Revenue
Commissions, fees and other	$	—		$	—		$	5,854		$	—		$	5,854
Fiduciary investment income	—			—			12			—			12
Total revenue	—			—			5,866			—			5,866
Expenses
Compensation and benefits	72			13			3,374			—			3,459
Other general expenses	6			5			1,482			—			1,493
Total operating expenses	78			18			4,856			—			4,952
Operating (loss) income	(78		)	(18		)	1,010			—			914
Interest income	(4		)	1			7			—			4
Interest expense	(25		)	(63		)	(35		)	—			(123		)
Intercompany interest income (expense)	222			(147		)	(75		)	—			—
Intercompany other (expense) income	(72		)	(19		)	91			—			—
Other income	(1		)	8			(8		)	—			(1		)
(Loss) income before taxes	42			(238		)	990			—			794
Income tax (benefit) expense	9			(92		)	228			—			145
(Loss) income before equity in earnings of subsidiaries	33			(146		)	762			—			649
Equity in earnings of subsidiaries, net of tax	596			621			475			(1,692		)	—
Net income	629			475			1,237			(1,692		)	649
Less: Net income attributable to noncontrolling interests	—			—			20			—			20
Net income attributable to Aon shareholders	$	629		$	475		$	1,217		$	(1,692	)	$	629

Condensed Consolidating Statements of Comprehensive Income

Condensed Consolidating Statement of Comprehensive Income

	Three months ended June 30, 2015
					Other
	Aon		Aon		Non-Guarantor			Consolidating
(millions)	plc		Corporation		Subsidiaries			Adjustments			Consolidated
Net income	$	178	$	64	$	337		$	(391	)	$	188
Less: Net income attributable to noncontrolling interests	—		—		10			—			10
Net income attributable to Aon shareholders	$	178	$	64	$	327		$	(391	)	$	178
Other comprehensive (loss) income, net of tax:
Change in fair value of financial instruments	—		2		(8		)	—			(6		)
Foreign currency translation adjustments	—		4		171			—			175
Post-retirement benefit obligation	—		9		12			—			21
Total other comprehensive loss	—		15		175			—			190
Equity in other comprehensive loss of subsidiaries, net of tax	191		173		188			(552		)	—
Less: Other comprehensive income attributable to noncontrolling interests	—		—		(1		)	—			(1		)
Total other comprehensive loss attributable to Aon shareholders	191		188		364			(552		)	191
Comprehensive income attributable to Aon shareholders	$	369	$	252	$	691		$	(943	)	$	369

Condensed Consolidating Statement of Comprehensive Income

	Three months ended June 30, 2014
						Other
	Aon		Aon			Non-Guarantor		Consolidating
(millions)	plc		Corporation			Subsidiaries		Adjustments			Consolidated
Net income	$	304	$	220		$	575	$	(786	)	$	313
Less: Net income attributable to noncontrolling interests	—		—			9		—			9
Net income attributable to Aon shareholders	$	304	$	220		$	566	$	(786	)	$	304
Other comprehensive income (loss), net of tax:
Change in fair value of financial instruments	—		(1		)	11		—			10
Foreign currency translation adjustments	—		15			59		—			74
Post-retirement benefit obligation	—		5			13		—			18
Total other comprehensive (loss) income	—		19			83		—			102
Equity in other comprehensive income of subsidiaries, net of tax	102		73			—		(175		)	—
Less: Other comprehensive income attributable to noncontrolling interests	—		—			—		—			—
Total other comprehensive income attributable to Aon shareholders	102		92			83		(175		)	102
Comprehensive income attributable to Aon Shareholders	$	406	$	312		$	649	$	(961	)	$	406

Condensed Consolidating Statement of Comprehensive Income

	Six months ended June 30, 2015
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
Net income	$	506		$	366		$	1,096		$	(1,439	)	$	529
Less: Net income attributable to noncontrolling interests	—			—			23			—			23
Net income attributable to Aon shareholders	$	506		$	366		$	1,073		$	(1,439	)	$	506
Other comprehensive (loss) income, net of tax:
Change in fair value of financial instruments	—			1			(2		)	—			(1		)
Foreign currency translation adjustments	—			(19		)	(128		)	—			(147		)
Post-retirement benefit obligation	—			17			27			—			44
Total other comprehensive loss	—			(1		)	(103		)	—			(104		)
Equity in other comprehensive loss of subsidiaries, net of tax	(102		)	(94		)	(95		)	291			—
Less: Other comprehensive income attributable to noncontrolling interests	—			—			(2		)	—			(2		)
Total other comprehensive loss attributable to Aon shareholders	(102		)	(95		)	(196		)	291			(102		)
Comprehensive income attributable to Aon shareholders	$	404		$	271		$	877		$	(1,148	)	$	404

Condensed Consolidating Statement of Comprehensive Income

	Six months ended June 30, 2014
						Other
	Aon		Aon			Non-Guarantor			Consolidating
(millions)	plc		Corporation			Subsidiaries			Adjustments			Consolidated
Net income	$	629	$	475		$	1,237		$	(1,692	)	$	649
Less: Net income attributable to noncontrolling interests	—		—			20			—			20
Net income attributable to Aon shareholders	$	629	$	475		$	1,217		$	(1,692	)	$	629
Other comprehensive (loss) income, net of tax:
Change in fair value of financial instruments	—		—			20			—			20
Foreign currency translation adjustments	—		(2		)	92			—			90
Post-retirement benefit obligation	—		11			33			—			44
Total other comprehensive loss	—		9			145			—			154
Equity in other comprehensive loss of subsidiaries, net of tax	156		142			—			(298		)	—
Less: Other comprehensive income attributable to noncontrolling interests	—		—			(2		)	—			(2		)
Total other comprehensive loss attributable to Aon shareholders	156		151			147			(298		)	156
Comprehensive income attributable to Aon shareholders	$	785	$	626		$	1,364		$	(1,990	)	$	785

Condensed Consolidating Statements of Financial Position

Condensed Consolidating Statement of Financial Position

	As of June 30, 2015
					Other
	Aon		Aon		Non-Guarantor		Consolidating
(millions)	plc		Corporation		Subsidiaries		Adjustments			Consolidated
ASSETS
Cash and cash equivalents	$	—	$	2,221	$	707	$	(2,561	)	$	367
Short-term investments	—		125		359		—			484
Receivables, net	—		—		2,684		—			2,684
Fiduciary assets	—		—		11,389		—			11,389
Intercompany receivables	258		3,847		10,286		(14,391		)	—
Other current assets	2		223		538		(32		)	731
Total Current Assets	260		6,416		25,963		(16,984		)	15,655
Goodwill	—		—		8,661		—			8,661
Intangible assets, net	—		—		2,350		—			2,350
Fixed assets, net	—		—		782		—			782
Intercompany receivables	7,379		581		1,621		(9,581		)	—
Other non-current assets	189		693		1,656		(783		)	1,755
Investment in subsidiary	4,488		15,799		542		(20,829		)	—
TOTAL ASSETS	$	12,316	$	23,489	$	41,575	$	(48,177	)	$	29,203
LIABILITIES AND EQUITY
Fiduciary liabilities	$	—	$	—	$	11,389	$	—		$	11,389
Short-term debt and current portion of long-term debt	—		1,225		12		—			1,237
Accounts payable and accrued liabilities	2,597		49		1,283		(2,561		)	1,368
Intercompany payables	223		9,975		4,194		(14,392		)	—
Other current liabilities	—		55		822		(32		)	845
Total Current Liabilities	2,820		11,304		17,700		(16,985		)	14,839
Long-term debt	3,092		1,418		314		—			4,824
Pension, other post-retirement and other post-employment liabilities	—		1,336		608		—			1,944
Intercompany payables	—		8,787		794		(9,581		)	—
Other non-current liabilities	6		102		1,814		(782		)	1,140
TOTAL LIABILITIES	5,918		22,947		21,230		(27,348		)	22,747
TOTAL AON SHAREHOLDERS' EQUITY	6,398		542		20,287		(20,829		)	6,398
Noncontrolling interests	—		—		58		—			58
TOTAL EQUITY	6,398		542		20,345		(20,829		)	6,456
TOTAL LIABILITIES AND EQUITY	$	12,316	$	23,489	$	41,575	$	(48,177	)	$	29,203

Condensed Consolidating Statement of Financial Position

	As of December 31, 2014
					Other
	Aon		Aon		Non-Guarantor		Consolidating
(millions)	plc		Corporation		Subsidiaries		Adjustments			Consolidated
ASSETS
Cash and cash equivalents	$	—	$	2,727	$	1,361	$	(3,714	)	$	374
Short-term investments	—		165		229		—			394
Receivables, net	—		—		2,815		—			2,815
Fiduciary assets	—		—		11,638		—			11,638
Intercompany receivables	455		2,814		9,156		(12,425		)	—
Other current assets	2		226		407		(33		)	602
Total Current Assets	457		5,932		25,606		(16,172		)	15,823
Goodwill	—		—		8,860		—			8,860
Intangible assets, net	—		—		2,520		—			2,520
Fixed assets, net	—		—		765		—			765
Intercompany receivables	7,399		600		111		(8,110		)	—
Other non-current assets	179		697		1,718		(790		)	1,804
Investment in subsidiary	4,962		15,200		1,880		(22,042		)	—
TOTAL ASSETS	$	12,997	$	22,429	$	41,460	$	(47,114	)	$	29,772
LIABILITIES AND EQUITY
Fiduciary liabilities	$	—	$	—	$	11,638	$	—		$	11,638
Short-term debt and current portion of long-term debt	—		767		16		—			783
Accounts payable and accrued liabilities	3,755		58		1,706		(3,714		)	1,805
Intercompany payables	122		8,960		3,343		(12,425		)	—
Other current liabilities	—		49		772		(33		)	788
Total Current Liabilities	3,877		9,834		17,475		(16,172		)	15,014
Long-term debt	2,544		1,917		338		—			4,799
Pension, other post-retirement and other post-employment liabilities	—		1,396		745		—			2,141
Intercompany payables	—		7,277		833		(8,110		)	—
Other non-current liabilities	5		125		1,847		(790		)	1,187
TOTAL LIABILITIES	6,426		20,549		21,238		(25,072		)	23,141
TOTAL AON SHAREHOLDERS' EQUITY	6,571		1,880		20,162		(22,042		)	6,571
Noncontrolling interests	—		—		60		—			60
TOTAL EQUITY	6,571		1,880		20,222		(22,042		)	6,631
TOTAL LIABILITIES AND EQUITY	$	12,997	$	22,429	$	41,460	$	(47,114	)	$	29,772

Condensed Consolidating Statements of Cash Flows

Condensed Consolidating Statement of Cash Flows

	Six months ended June 30, 2015
	Aon			Aon			Other Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	$	(120	)	$	(368	)	$	853		$	—		$	365
CASH FLOWS FROM INVESTING ACTIVITIES
Sales of long-term investments	—			—			10			—			10
Purchase of long-term investments	—			(1		)	—			—			(1		)
Net sales of short-term investments - non-fiduciary	—			41			(138		)	—			(97		)
Acquisition of businesses, net of cash acquired	—			—			(23		)	—			(23		)
Proceeds from sale of businesses	—			—			52			—			52
Capital expenditures	—			—			(142		)	—			(142		)
CASH PROVIDED BY (USED FOR) INVESTING ACTIVITIES	—			40			(241		)	—			(201		)
CASH FLOWS FROM FINANCING ACTIVITIES
Share repurchase	(550		)	—			—			—			(550		)
Advances from (to) affiliates	172			(134		)	(1,191		)	1,153			—
Issuance of shares for employee benefit plans	52			—			—			—			52
Issuance of debt	712			1,732			1			—			2,445
Repayment of debt	(110		)	(1,776		)	(10		)	—			(1,896		)
Cash dividends to shareholders	(156		)	—			—			—			(156		)
Purchase of shares from noncontrolling interests	—			—			(5		)	—			(5		)
Dividends paid to noncontrolling interests	—			—			(18		)	—			(18		)
CASH (USED FOR) PROVIDED BY FINANCING ACTIVITIES	120			(178		)	(1,223		)	1,153			(128		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			(43		)	—			(43		)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	—			(506		)	(654		)	1,153			(7		)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	—			2,727			1,361			(3,714		)	374
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	—		$	2,221		$	707		$	(2,561	)	$	367

Condensed Consolidating Statement of Cash Flows

	Six months ended June 30, 2014
							Other
	Aon			Aon			Non-Guarantor			Consolidating
(millions)	plc			Corporation			Subsidiaries			Adjustments			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES
CASH PROVIDED BY (USED FOR) OPERATING ACTIVITIES	$	265		$	(215	)	$	283		$	—		$	333
CASH FLOWS FROM INVESTING ACTIVITIES
Sales of long-term investments	—			37			11			—			48
Purchase of long-term investments	—			(14		)	—			—			(14		)
Net sales of short-term investments - non-fiduciary	—			27			190			—			217
Acquisition of businesses, net of cash acquired	—			—			(83		)	—			(83		)
Proceeds from sale of businesses	—			—			1			—			1
Capital expenditures	—			—			(115		)	—			(115		)
CASH PROVIDED BY INVESTING ACTIVITIES	—			50			4			—			54
CASH FLOWS FROM FINANCING ACTIVITIES
Share repurchase	(1,250		)	—			—			—			(1,250		)
Advances from (to) affiliates	(522		)	99			586			(163		)	—
Issuance of shares for employee benefit plans	40			—			—			—			40
Issuance of debt	2,169			1,161			(6		)	—			3,324
Repayment of debt	(574		)	(1,161		)	(10		)	—			(1,745		)
Deposit with trustee	—			—			(681		)	—			(681		)
Cash dividends to shareholders	(128		)	—			—			—			(128		)
Purchase of shares from noncontrolling interests	—			—			1			—			1
Dividends paid to noncontrolling interests	—			—			(10		)	—			(10		)
CASH (USED FOR) PROVIDED BY FINANCING ACTIVITIES	(265		)	99			(120		)	(163		)	(449		)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	—			—			3			—			3
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	—			(66		)	170			(163		)	(59		)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	—			247			1,246			(1,016		)	477
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	—		$	181		$	1,416		$	(1,179	)	$	418