Employee Benefit Plans - RSU, RSA, and PSA Activities (Details) - USD ($) $ / shares in Units, $ in Millions					12 Months Ended
	Oct. 24, 2019	Jul. 25, 2019	Apr. 25, 2019	Jan. 29, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted Average Grant-Date Fair Value per Share
Cash dividends declared per share of common stock (in dollars per share)	$ 0.19	$ 0.19	$ 0.19	$ 0.19
Fair value of RSUs, RSAs and PSAs					$ 170.0	$ 200.5	$ 187.3
Restricted Stock Units (RSU) and Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					3 years
Restricted Stock Units (RSUs)
Number of Shares
Granted (in shares)					7,600,000
Substituted in acquisitions (in shares)					100,000
Vested (in shares)					(5,500,000)
Canceled (in shares)					(2,300,000)
Weighted Average Grant-Date Fair Value per Share
Granted (in dollars per share)					$ 25.06
Substituted in acquisitions (in dollars per share)					25.81
Vested (in dollars per share)					25.99
Canceled (in dollars per share)					25.97
Balance at end of period (in dollars per share)					$ 25.26
Number of performance shares (in shares)					200,000
Restricted Stock Units (RSUs) | Minimum
Weighted Average Grant-Date Fair Value per Share
Number of performance shares (in shares)					0
Restricted Stock Units (RSUs) | Maximum
Weighted Average Grant-Date Fair Value per Share
Number of performance shares (in shares)					400,000
Performance Shares (PSAs)
Number of Shares
Granted (in shares)					2,100,000
Vested (in shares)					(900,000)
Canceled (in shares)					(1,400,000)
Weighted Average Grant-Date Fair Value per Share
Granted (in dollars per share)					$ 25.30
Vested (in dollars per share)					25.13
Canceled (in dollars per share)					21.53
Balance at end of period (in dollars per share)					$ 27.53
Number of performance shares (in shares)					700,000
Number of modified shares (in shares)					900,000
Compensation cost from modifications					$ 21.2
Performance Shares (PSAs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					2 years
Weighted Average Grant-Date Fair Value per Share
Number of performance shares (in shares)					0
Performance Shares (PSAs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					3 years
Weighted Average Grant-Date Fair Value per Share
Number of performance shares (in shares)					1,000,000.0
RSA
Number of Shares
Substituted in acquisitions (in shares)					700,000
Vested (in shares)					(200,000)
Canceled (in shares)					(100,000)
Weighted Average Grant-Date Fair Value per Share
Substituted in acquisitions (in dollars per share)					$ 27.20
Vested (in dollars per share)					25.32
Canceled (in dollars per share)					27.65
Balance at end of period (in dollars per share)					$ 25.33
RSUs, RSAs, and PSAs
Number of Shares
Balance at beginning of period (in shares)					17,400,000
Balance at end of period (in shares)					17,500,000	17,400,000
Weighted Average Grant-Date Fair Value per Share
Balance at beginning of period (in dollars per share)					$ 25.32
Balance at end of period (in dollars per share)					$ 25.30	$ 25.32
Weighted Average Remaining Contractual Term (In Years)					1 year 1 month 6 days
Aggregate Intrinsic Value					$ 430.9
Vested and expected-to-vest RSUs and PSAs, number of shares at (in shares)					16,200,000
Vested and expected-to-vest RSUs and PSA, grant date fair value (in dollars per share)					$ 25.32
Options vested and expected to vest, weighted average remaining contractual term					1 year 1 month 6 days
Vested and expected-to-vest RSUs and PSA, aggregate intrinsic value					$ 399.2